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Some Complexity Results for Robustness Verification for Binarized Neural Networks

13h ago·1 min read·79 words

Tractable Gap-Constraint Languages for Complex Event Recognition

13h ago·2 min read·327 words

Learning Augmented Exact Exponential Algorithms

13h ago·1 min read·166 words

Compact Geometric Representations of Hierarchies

13h ago·2 min read·261 words

On (Non-)Isomorphism of Self-Dual Lattices and Codes

13h ago·2 min read·276 words

Tangent Spheres and Integer Distances

13h ago·1 min read·177 words

Guarded Epoch Bloom Filters for Sliding-Window Membership

13h ago·2 min read·207 words

A Neural Network Framework for Geodesic-Like Curve Computation on Parametric Surfaces

13h ago·1 min read·115 words

Patnaik-Pearson intrinsic dimension for internal representations of neural networks

13h ago·2 min read·208 words

Depth Lower Bounds for ReLU Networks with Binary Inputs

13h ago·1 min read·194 words

Call for workshop proposals: FOCS 2026

1d ago·2 min read·297 words

On the Complexity of the Circuit Width Problem

1d ago·1 min read·169 words

High-Fidelity 3D Geometric Reconstruction of Pelvic Organs from MRI: A Hybrid Deep Learning and Iterative Optimization Approach

1d ago·2 min read·268 words

Blended Chart Surfaces: A Seamless Explicit Representation for Smooth Surface Fitting

1d ago·2 min read·267 words

Non-negative Matrix Factorisation with Topological Regularisation

1d ago·1 min read·141 words

Online Connectivity Augmentation

1d ago·1 min read·174 words

Agent Utilities over Generalized Voronoi Regions and their Gradients

1d ago·2 min read·220 words

Greedy Vector Balancing

1d ago·2 min read·314 words

Directed Reachability-Preserving Minimum Edge Cut: Approximation and Planar Hardness

1d ago·1 min read·178 words

A Counterexample to Wegner's Conjecture for Axis-Parallel Rectangles

1d ago·2 min read·210 words

TR26-095 | Towards Worst-case Hardness for Low-Noise LPN | Divesh Aggarwal, Rishav Gupta, Hai Hoang Nguyen, Kel Zin Tan, Prashant Nalini Vasudevan

Jun 7·2 min read·299 words

News for May 2026

Jun 7·7 min read·1258 words

Three Interviews

Jun 6·5 min read·975 words

Information-Theoretic Kuplex

Jun 5·1 min read·83 words

Efficient Computation of Distance Functions for Navigation Vector Fields in Lie Groups

Jun 5·2 min read·206 words

RedZeD: Computing persistent homology by Reduction to Zero Differentials

Jun 5·1 min read·70 words

Efficient Mean Curvature Computation on High-Dimensional Data Manifolds

Jun 5·2 min read·295 words

Analytic patch trees: branch interface inheritance and fractal dimension fields

Jun 5·1 min read·193 words

Bridging CAD and Data-Driven Design: Attributed Feature Graphs for Engineering Design

Jun 5·2 min read·234 words

Polynomial-time satisfiability for a special case of Positive$\wedge$Negative

Jun 5·1 min read·142 words

Quantum Algorithms for Triangle Cut Sparsification

Jun 5·1 min read·190 words

Quantum enhanced rare event discovery and sampling

Jun 5·1 min read·172 words

Temporal matching in trees

Jun 5·2 min read·235 words

A Class of Multipartite Entangled States Based on State Transitions

Jun 5·1 min read·125 words

STOC TheoryFest 2026 Online Poster Session – Call for Posters

Jun 4·1 min read·80 words

TR26-094 | Seven observations about weighted pseudorandom generators | Dean Doron, Oded Goldreich

Jun 4·1 min read·52 words

We're Computerizing and Don't Need You

Jun 4·7 min read·1209 words

Sharp Low-Degree Thresholds for Planted-vs-Planted Testing

Jun 4·1 min read·145 words

Token Rankings are Unforgeable Language Model Signatures

Jun 4·2 min read·204 words

Independence and Domination on Bounded-Treewidth Graphs: Integer, Rational, and Irrational Distances

Jun 4·2 min read·224 words

Randomized separations in black-box TFNP

Jun 4·1 min read·78 words

Quantum Time Lower Bounds by Permutation Invariance

Jun 4·2 min read·251 words

Dispatches from the possibly last days of human relevance

May 28·7 min read·1388 words

Privately Estimating Monotone Statistics in Polynomial Time

May 28·1 min read·162 words

Quantum principal component analysis without eigenvector recovery

May 28·2 min read·263 words

Efficient Algorithms for Interdicting Facilities in Trees and Bounded Treewidth Graphs

May 28·2 min read·269 words

A Deterministic Separation Lemma

May 28·1 min read·144 words

Gauge Geometry of Hodge Zero-Mode Transport in Parameter-Dependent Topological Data Analysis

May 28·2 min read·222 words

Disjunctive Sum of Squares

May 28·1 min read·191 words

A Fresh Look at Lamarckian Evolution and the Baldwin Effect

May 28·2 min read·256 words

Powers and Limitations of Synchronous Self-Assembly

May 28·1 min read·200 words

High-Quality Multi-Constraint Hypergraph Partitioning via Greedy Rebalancing

May 28·2 min read·208 words

Polynomial-time isomorphism test for groups with abelian Sylow subgroups

May 27·1 min read·121 words

2-ASP(Q) programs with weak constraints: Complexity and efficient implementation

May 27·1 min read·153 words

Where to Split and When to Charge: Optimal Route Construction from Customer Permutations in Electric Vehicle Routing

May 27·2 min read·254 words

Parsimonious Learning-Augmented Online Metric Matching

May 27·1 min read·142 words

Euclidean Steiner Shallow-Light Trees in Higher Dimensions

May 27·1 min read·73 words

On the Detection of Commutative Factors in Factor Graphs: Necessary and Sufficient Conditions

May 27·2 min read·217 words

Improved Hardness Results for Nash Social Welfare, Budgeted Allocation and GAP via the Unique Games Conjecture

May 27·2 min read·210 words

Virtual-Memory Powersort

May 27·1 min read·143 words

Low Soundness Linearity Testing on the Half-Slice

May 27·2 min read·262 words

Only One Company Makes the Game Monopoly

May 26·7 min read·1361 words

The complexity of frugal digraph homomorphisms

May 26·1 min read·94 words

PAC Learning with Bandit Feedback: Sharp Sample Complexity in the Realizable Setting

May 26·2 min read·250 words

Weighted Clique and Independent Set in Edge-Distant Hereditary Graphs

May 26·2 min read·258 words

On the Complexity of Bilevel Independent Set Problem

May 26·1 min read·164 words

A computational phase transition for learning-to-sample from Ising models

May 26·2 min read·217 words

Approximate Algorithms for Chamfer Distance Under Translation

May 26·2 min read·206 words

A Note on Approximability of Densest At-Least-k-Subgraph

May 26·2 min read·232 words

TopoAlign: Topology-Aware Visual Representation Alignment

May 26·2 min read·215 words

A Parameterized Algorithm for Testing whether the Limit of a Diagram is Empty

May 26·1 min read·185 words

Rounding Almost Commuting Hamiltonians

May 26·1 min read·172 words

Ancilla-Efficient QSAMPLE Preparation for Reversible Markov Chains

May 25·2 min read·284 words

Beyond the Half-Approximation: Fair and Efficient Online Class Matching

May 25·2 min read·247 words

Reducing the Randomness in Partition Oracles for Bounded Degree Minor-Free Graphs

May 25·2 min read·269 words

Optimal Dimension-Free Sampling for Regularized Classification

May 25·2 min read·206 words

Dynamic Query Modification for Binary Locality Sensitive Hashing

May 25·2 min read·307 words

The Deterministic Horizon: Impossibility Results as Design Specifications for Trustworthy AI Systems

May 25·2 min read·277 words

Query Lower Bounds for Correlation Clustering under Memory Constraints

May 25·1 min read·156 words

On the Approximate Non-Deterministic Degree of Total Boolean Functions

May 25·2 min read·237 words

Probabilistically checkable proofs for the Existential Theory of the Reals

May 25·2 min read·216 words

Recursion and proof theoretical characterizations of small circuit classes with modulo counting via discrete differential equations (long version)

May 25·1 min read·158 words

TR26-086 | A Note on Second-Order Expected Maximum-Load Bounds for Binary Linear Hashing | Nader Bshouty

May 24·2 min read·255 words

TR26-085 | On Parallel Complexity of Arboricity in Structured Graphs | Archit Chauhan, Himanshi Singh, Rohit Gurjar, Sujoy Bhore

May 24·1 min read·92 words

Interview with Naoki Kobayashi, CONCUR 2026 ToT Award recipient

May 21·11 min read·2076 words

Individual Experience vs. The Cochrane Review

May 20·5 min read·982 words

Lutris: Safe Composition of Broadcast and Consensus

May 20·1 min read·83 words

From Single-Shot Simplex to Chained Simplex

May 20·1 min read·81 words

TR26-084 | Rank bounds and polynomial-time PIT for $\Sigma^k \Pi \Sigma \Pi^2$ circuits | Abhibhav Garg, Rafael Mendes de Oliveira, Akash Sengupta, Nir Shalmon, Amir Shpilka

May 20·2 min read·290 words

TR26-083 | Boolean Derivative Certificates and Maximal ANF Terms | Nicholas Smirnov

May 19·1 min read·142 words

More cool results about the complexity of distributions

May 18·1 min read·86 words

More efficient PBWT prefix-array access via batching

May 18·2 min read·253 words

Exploration of $k$-edge-deficient temporal graphs in linear time

May 18·2 min read·250 words

Complexity of Non-Log-Concave Sampling in Fisher Information

May 18·1 min read·164 words

Optimizing Line Segment Inspection with Limited-Range Drones

May 18·2 min read·211 words

The Robotaxi Placement Problem: Minimizing Expected ETA for Stochastic Demand

May 18·2 min read·210 words

On the parameterized complexity of Broadcast Independence and Broadcast Packing

May 18·2 min read·324 words

An improved boundary-focused adaptive quadtree algorithm for circle-polygon intersection area approximation

May 18·2 min read·210 words

The Collapse of Unentangled Stoquastic Merlin-Arthur Proof Systems

May 18·1 min read·155 words

One-Sided Differential Privacy

May 15·14 min read·2696 words

TCS for All Spotlight Workshop at STOC 2026: Conference registration grants and call for speaker nominations

May 15·1 min read·92 words

TR26-076 | Polynomial Identity Testing for Read-4 Arithmetic Formulas | Nimrod Kaplan, Amir Shpilka

May 15·2 min read·318 words

Upper Bounds for Symmetric Approximate Bounded Indistinguishability

May 14·1 min read·7 words

Min-Max Optimization Requires Exponentially Many Queries

May 14·1 min read·6 words

Topology-Preserving Neural Operator Learning via Hodge Decomposition

May 14·1 min read·7 words

Quantum state isomorphism problems for groups

May 14·1 min read·6 words

The Distributed Complexity Landscape on Trees Depends on the Knowledge About the Network Size

May 14·1 min read·14 words

LFPL: Revisited and Mechanized

May 14·1 min read·4 words

Decision Tree Learning on Product Spaces

May 14·1 min read·6 words

Diversity of Extensions in Abstract Argumentation

May 14·1 min read·6 words

On the Complexity of the Minimum-($k,ρ$)-Shortcut Problem

May 14·1 min read·7 words

Polyhedral Instability Governs Regret in Online Learning

May 14·1 min read·7 words

PhD/Masters at Tennessee Tech University (apply by May 31, 2026)

May 12·1 min read·10 words

Average-Case Hardness of Binary-Encoded Clique in Proof and Communication Complexity

May 12·1 min read·10 words

Towards infinite PCSP: a dichotomy for monochromatic cliques

May 12·1 min read·8 words

Multi-Prover Interactive Proof Systems with Leakage

May 12·1 min read·6 words

Optimal Inapproximability of Generalized Linear Equations over a Finite Group

May 12·1 min read·10 words

The two clocks and the innovation window: When and how generative models learn rules

May 12·1 min read·14 words

Hardness Amplification for (Sparse) LPN

May 12·1 min read·5 words

Parameterized Complexity of Stationarity Testing for Piecewise-Affine Functions and Shallow CNN Losses

May 12·1 min read·12 words

Continuous Defensive Domination Problems

May 12·1 min read·4 words

When Does Sparsity Help for k-Independent Set in Hypergraphs and Other Boolean CSPs?

May 12·1 min read·13 words

Constant Inapproximability for Fisher Markets

May 12·1 min read·5 words

TR26-074 | Improved analysis of list-decodability of random linear codes: It’s all about counting constraints | Rohan Goyal, Venkatesan Guruswami

May 11·1 min read·20 words

The Quantification Trap

May 11·1 min read·3 words

TR26-073 | An Algorithmic Proof of Kruskal’s Tensor Decomposition Theorem | Vishwas Bhargava, Leonard Schulman, Shiri Sivan

May 11·1 min read·17 words

A Note on Non-Negative $L_1$-Approximating Polynomials

May 11·1 min read·6 words

Parameterized Local Search for Vertex Cover: When only the Search Radius is Crucial

May 11·1 min read·13 words

Touring a Sequence of Orthogonal Polygons

May 11·1 min read·6 words

Coordinated Motion Planning is FPT on Discretized Simple Polygons

May 11·1 min read·9 words

On the Complexity of Discounted Robust MDPs with $L_p$ Uncertainty Sets

May 11·1 min read·11 words

Computing bases in Hermite normal form of lattices of integer relations

May 11·1 min read·11 words

Instance and Universally Optimal Bounds for Imprecise Pareto Fronts

May 11·1 min read·9 words

Planarizing Gadgets for (k, l)-tight Graphs Do Not Exist

May 11·1 min read·9 words

CARMEN: CORDIC-Accelerated Resource-Efficient Multi-Precision Inference Engine for Deep Learning

May 11·1 min read·9 words

Relating the Computational and Logical Difficulty of Solving ODEs: From Polynomial to Discontinuous Right-Hand Sides

May 11·1 min read·15 words

TR26-071 | Planarizing Gadgets for $(k,l)$-tight Graphs Do Not Exist | Kilian Rothmund, Archit Chauhan, Rohit Gurjar, Thomas Thierauf

May 10·1 min read·19 words

TR26-069 | Moonflowers and efficient code sparsification | Shachar Lovett, Raghu Meka, Yimeng Wang

May 9·1 min read·14 words

When do we know someone has died

May 6·1 min read·7 words

Point Group Symmetry of Polyhedral Diagrams in Graphic Statics

Apr 29·1 min read·9 words

New Parameterized and Exact Exponential Time Algorithms for Strongly Connected Steiner Subgraph

Apr 29·1 min read·12 words

From Gödel incompleteness to the consistency of circuit lower bounds

Apr 29·1 min read·10 words

Testing Robustness of Temporal Transportation Networks via Interval Separators

Apr 29·1 min read·9 words

Two Efficient Message-passing Exclusive Scan Algorithms

Apr 29·1 min read·6 words

SimdQuickHeap: The QuickHeap Reconsidered

Apr 29·1 min read·4 words

Tight Bounds for some W[1]-hard Problems Parameterized by Multi-clique-width

Apr 29·1 min read·9 words

Clustering Permutations under the Ulam Metric: A Parameterized Complexity Study

Apr 29·1 min read·10 words

A dynamic $(1+\varepsilon)$-spanner for disk intersection graphs

Apr 29·1 min read·7 words

Unrestrictions and concise secant varieties

Apr 29·1 min read·5 words

Beyond censorship resistance: hiding, simultaneous binding, and accountable last look

Apr 27·1 min read·10 words

Complexity Classes Arising from Circuits over Finite Algebraic Structures

Apr 24·1 min read·9 words

On Time-Memory Tradeoffs for Maximal Palindromes with Wildcards and $k$-Mismatches

Apr 24·1 min read·10 words

Graph Neural Network-Informed Predictive Flows for Faster Ford-Fulkerson and PAC-Learnability

Apr 24·1 min read·10 words

Efficient generation of expected-degree graphs via edge-arrivals

Apr 24·1 min read·7 words

A simple $(2+ε)$-approximation for knapsack interdiction

Apr 24·1 min read·6 words

Kernelization Bounds for Constrained Coloring

Apr 24·1 min read·5 words

Sampling from the Hardcore Model on Random Regular Bipartite Graphs above the Uniqueness Threshold

Apr 24·1 min read·14 words

A rigorous quasipolynomial-time classical algorithm for SYK thermal expectations

Apr 24·1 min read·9 words

Characterizing Streaming Decidability of CSPs via Non-Redundancy

Apr 24·1 min read·7 words

Rabin has just passed away

Apr 22·1 min read·5 words

Freedom From Choice

Apr 22·1 min read·3 words

Michael Rabin Passed Away on April 14, 2026, at the age of 94

Apr 22·1 min read·13 words

Greedy Routing in a Sequentially Grown One-Dimensional Random Graph

Apr 22·1 min read·9 words

Quantum embedding of graphs for subgraph counting

Apr 22·1 min read·7 words

Lions and Contamination: Trees and General Graphs

Apr 22·1 min read·7 words

Parity Tests with Ties

Apr 22·1 min read·4 words

Coherent-State Propagation: A Computational Framework for Simulating Bosonic Quantum Systems

Apr 22·1 min read·10 words

Qubit Routing for (Almost) Free

Apr 22·1 min read·5 words

Parameterized Capacitated Vertex Cover Revisited

Apr 22·1 min read·5 words

Local Depth-Based Corrections to Maxmin Landmark Selection for Lazy Witness Persistence

Apr 22·1 min read·11 words

Monotile kirigami

Apr 22·1 min read·2 words

Maximum Solow--Polasky Diversity Subset Selection Is NP-hard Even in the Euclidean Plane

Apr 22·1 min read·12 words

CONCUR Test-of-Time Awards 2026

Apr 20·1 min read·4 words

May 26-29 at Columbia: Summer School on the Theory and Practice of Blockchain Consensus

Apr 20·1 min read·14 words

Walk the Marble Malls

Apr 20·1 min read·4 words

Faculty & Research Positions in Artificial Intelligence at Capital Normal University (apply by April 24, 2028)

Apr 17·1 min read·16 words

Structured Uncertainties

Apr 17·1 min read·2 words

Reverse-Robust Computation with Chemical Reaction Networks

Apr 17·1 min read·6 words

Orthogonal Strip Partitioning of Polygons: Lattice-Theoretic Algorithms and Lower Bounds

Apr 17·1 min read·10 words

On the Expressive Power and Limitations of Multi-Layer SSMs

Apr 17·1 min read·9 words

A Hypergraph Container Method on Spread SAT: Approximation and Speedup

Apr 17·1 min read·10 words

Complexity of Fungal Automaton Prediction

Apr 17·1 min read·5 words

Explicit Constant-Alphabet Subspace Design Codes

Apr 17·1 min read·5 words

IQP circuits for 2-Forrelation

Apr 17·1 min read·4 words

The Parameterized Complexity of Coloring Mixed Graphs

Apr 17·1 min read·7 words

Postdoc at University of Antwerp (apply by June 1, 2026)

Apr 16·1 min read·10 words

APPROX 2026 Call for Papers

Apr 16·1 min read·5 words

Postdoc at West Virginia University (apply by May 31, 2026)

Apr 16·1 min read·10 words

Machine Learning and Complexity

Apr 16·1 min read·4 words

Block-Based Pathfinding: A Minecraft System for Visualizing Graph Algorithms

Apr 16·1 min read·9 words

Max Cut with Small-Dimensional SDP Solutions

Apr 16·1 min read·6 words

Parallel Algorithms for Group Isomorphism via Code Equivalence

Apr 16·1 min read·8 words

NP-Hardness and a PTAS for the Pinwheel Problem

Apr 16·1 min read·8 words

Fast Time-Varying Contiguous Cartograms Using Integral Images

Apr 16·1 min read·7 words

Reachability Constraints in Variational Quantum Circuits: Optimization within Polynomial Group Module

Apr 16·1 min read·11 words

On the Decidability of Verification under Release/Acquire

Apr 16·1 min read·7 words

Lower Bounds for Testing Directed Acyclicity in the Unidirectional Bounded-Degree Model

Apr 16·1 min read·11 words

Lawler-Moore Speedups via Additive Combinatorics

Apr 16·1 min read·5 words

Fully Dynamic Maintenance of Loop Nesting Forests in Reducible Flow Graphs

Apr 16·1 min read·11 words

Reticulating Splines

Apr 15·1 min read·2 words

PhD student at University of Salzburg (apply by May 6, 2026)

Apr 15·1 min read·11 words

Symmetric subrank and its border analogue

Apr 15·1 min read·6 words

Longest Common Extension of a Dynamic String in Parallel Constant Time

Apr 15·1 min read·11 words

Efficiency of Proportional Mechanisms in Online Auto-Bidding Advertising

Apr 15·1 min read·8 words

Asymptotically faster algorithms for recognizing $(k,\ell)$-sparse graphs

Apr 15·1 min read·7 words

Dequantizing Short-Path Quantum Algorithms

Apr 15·1 min read·4 words

The Parameterized Complexity of Vertex-Coloring Edge-Weighting

Apr 15·1 min read·6 words

Topology Understanding of B-Spline Surface/Surface Intersection with Mapper

Apr 15·1 min read·8 words

A Relativizing MIP for BQP

Apr 15·1 min read·5 words

From Witness-Space Sharpness To Family-Pointwise Exactness For The Solvability Complexity Index

Apr 15·1 min read·11 words

A complexity phase transition at the EPR Hamiltonian

Apr 15·1 min read·8 words

TCS+ talk: Wednesday, April 22 — Yichuan Wang, UC Berkeley

Apr 14·1 min read·10 words

Maximum Independent Sets in Disk Graphs with Disks in Convex Position

Apr 14·1 min read·11 words

Any 3D Scene is Worth 1K Tokens: 3D-Grounded Representation for Scene Generation at Scale

Apr 14·1 min read·14 words

Scalable Exact Hierarchical Agglomerative Clustering via Sparse Geographic Distance Graphs

Apr 14·1 min read·10 words

Algorithms for Standard-form ILP Problems via Komlós' Discrepancy Setting

Apr 14·1 min read·9 words

The Borsuk number of a graph

Apr 14·1 min read·6 words

Complexity Theory meets Ordinary Differential Equations

Apr 14·1 min read·6 words

Near Optimal Algorithms for Noisy $k$-XOR under Low-Degree Heuristic

Apr 14·1 min read·9 words

Differentially Private Verification of Distribution Properties

Apr 14·1 min read·6 words

Strips as Tokens: Artist Mesh Generation with Native UV Segmentation

Apr 13·1 min read·10 words

Speed Thrills: Visceral Demonstrations That Get Students Excited About Efficient Algorithms

Apr 13·1 min read·11 words

Packing Compact Subgraphs with Applications to Districting

Apr 13·1 min read·7 words

Optimal Single-Pass Streaming Lower Bounds for Approximating CSPs

Apr 13·1 min read·8 words

Parametric Shortest Paths in a Linearly Interpolated Graph

Apr 13·1 min read·8 words

Fast Isotopy Computation for T-Curves

Apr 13·1 min read·5 words

Planted clique detection and recovery from the hypergraph adjacency matrix

Apr 13·1 min read·10 words

Parameterized Complexity Of Representing Models Of MSO Formulas

Apr 13·1 min read·8 words

TR26-056 | A $\mathbb{Z}_2$–Topological Framework for Sign-rank Lower Bounds | Kaave Hosseini, Florian Frick, Aliaksei Vasileuski

Apr 12·1 min read·16 words

Afterthoughs on Banach Tarski and the Miracle of loaves and Fishes

Apr 10·1 min read·11 words

Revisiting Fair and Efficient Allocations for Bivalued Goods

Apr 10·1 min read·8 words

Vulnerability Abundance: A formal proof of infinite vulnerabilities in code

Apr 10·1 min read·10 words

Rapid mixing for high-temperature Gibbs states with arbitrary external fields

Apr 10·1 min read·10 words

Quantum Property Testing for Bounded-Degree Directed Graphs

Apr 10·1 min read·7 words

Exponential quantum advantage in processing massive classical data

Apr 10·1 min read·8 words

The Boolean surface area of polynomial threshold functions

Apr 10·1 min read·8 words

The Quantum Query Complexity of Finding a Tarski Fixed Point on the 2D Grid

Apr 10·1 min read·14 words

Differentially Private Language Generation and Identification in the Limit

Apr 10·1 min read·9 words

Counting HyperGraphlets via Color Coding: a Quadratic Barrier and How to Break It

Apr 10·1 min read·13 words

TR26-054 | Optimal Single-Pass Streaming Lower Bounds for Approximating CSPs | Noah Singer, Madhur Tulsiani, Santhoshini Velusamy

Apr 9·1 min read·17 words

TR26-053 | How Does Machine Learning Manage Complexity? | Lance Fortnow

Apr 9·1 min read·11 words

postdoc at Nagoya University (apply by April 30, 2026)

Apr 9·1 min read·9 words

Toward a Uniform Algorithm and Uniform Reduction for Constraint Problems

Apr 9·1 min read·10 words

An Algebraic Introduction to Persistence

Apr 9·1 min read·5 words

The Josehedron: A space-filling plesiohedron based on the Fischer-Koch S Triply Periodic Minimal Surface

Apr 9·1 min read·14 words

When Majority Fails: Tight Bounds for Correlation Distillation Conjectures

Apr 9·1 min read·9 words

How Does Machine Learning Manage Complexity?

Apr 9·1 min read·6 words

Multiple Planted Structures Below $\sqrt{n}$: An SoS Integrality Gap and an SQ Lower Bound

Apr 9·1 min read·14 words

Toward a Tractability Frontier for Exact Relevance Certification

Apr 9·1 min read·8 words

On the Price of Privacy for Language Identification and Generation

Apr 9·1 min read·10 words

TR26-052 | A Sharp Characterization of Pessiland | Mikito Nanashima, Shuichi Hirahara

Apr 8·1 min read·12 words

Optimal Lower Bounds for Symmetric Modular Circuits

Apr 7·1 min read·7 words

Surface Quadrilateral Meshing from Integrable Odeco Fields

Apr 7·1 min read·7 words

Separator for $c$-Packed Segments and Curves

Apr 7·1 min read·6 words

Signotopes Induce Unique Sink Orientations on Grids

Apr 7·1 min read·7 words

VisACD: Visibility-Based GPU-Accelerated Approximate Convex Decomposition

Apr 7·1 min read·6 words

No Constant-Cost Protocol for Point--Line Incidence

Apr 7·1 min read·6 words

Expanders Meet Reed--Muller: Easy Instances of Noisy k-XOR

Apr 7·1 min read·8 words

Learning from Equivalence Queries, Revisited

Apr 7·1 min read·5 words

Optimal, Qubit-Efficient Quantum Vehicle Routing via Colored-Permutations

Apr 7·1 min read·7 words

Failure of the strong feasible disjunction property

Apr 7·1 min read·7 words

SHARC: Reference point driven Spherical Harmonic Representation for Complex Shapes

Apr 3·1 min read·10 words

Bipartite Exact Matching in P

Apr 3·1 min read·5 words

The Computational Complexity of Avoiding Strict Saddle Points in Constrained Optimization

Apr 3·1 min read·11 words

Topology-First B-Rep Meshing

Apr 3·1 min read·3 words

The edge of the asymptotic spectrum of tensors

Apr 3·1 min read·8 words

Near-Optimal Space Lower Bounds for Streaming CSPs

Apr 3·1 min read·7 words

Quantum polymorphism characterisation of commutativity gadgets in all quantum models

Apr 3·1 min read·10 words

Deterministic Hardness of Approximation For SVP in all Finite $\ell_p$ Norms

Apr 3·1 min read·11 words

DQC1-completeness of normalized trace estimation for functions of log-local Hamiltonians

Apr 3·1 min read·10 words

King Chasing Problem in Chinese Chess is NP-hard

Apr 3·1 min read·8 words

Should Have Known Better

Apr 2·1 min read·4 words

TCS+ talk: Wednesday, April 8 — Rahul Ilango, MIT

Apr 2·1 min read·9 words

You Play to Win the Game

Mar 31·1 min read·6 words

On the Complexity of Determinations

Mar 31·1 min read·5 words

Visualizing Higher Order Structures, Overlap Regions, and Clustering in the Hilbert Geometry

Mar 31·1 min read·12 words

Bribery's Influence on Ranked Aggregation

Mar 31·1 min read·5 words

Neural Approximation of Generalized Voronoi Diagrams

Mar 31·1 min read·6 words

Time Series Correlations and Kolmogorov Complexity: A Hausdorff Dimension Perspective

Mar 31·1 min read·10 words

Proximity Alert: Ipelets for Neighborhood Graphs and Clustering

Mar 31·1 min read·8 words

Automated Reencoding Meets Graph Theory

Mar 31·1 min read·5 words

The Ice Sheet State and Parameter Estimator (ICESEE) Library (v1.0.0): Ensemble Kalman Filtering for Ice Sheet Models

Mar 31·1 min read·17 words

NP-hardness of SVP in Euclidean Space

Mar 31·1 min read·6 words

Near-Optimal Bounds for Parameterized Euclidean k-means

Mar 31·1 min read·6 words

Proofdoors and Efficiency of CDCL Solvers

Mar 30·1 min read·6 words

Improved Approximation Algorithms and Hardness Results for Shortest Common Superstring with Reverse Complements

Mar 30·1 min read·13 words

Distances in Planar Graphs are Almost for Free!

Mar 30·1 min read·8 words

On merge-models

Mar 30·1 min read·2 words

Approximation Schemes for Subset TSP and Steiner Tree on Geometric Intersection Graphs

Mar 30·1 min read·12 words

An $Ω( (\log n / \log \log n)^2 )$ Cell-Probe Lower Bound for Dynamic Boolean Data Structures

Mar 30·1 min read·17 words

Optimal b-Colourings and Fall Colourings in $H$-Free Graphs

Mar 30·1 min read·8 words

Dynamic Nearest-Neighbor Searching Under General Metrics in ${\mathbb R}^3$ and Its Applications

Mar 30·1 min read·12 words

Surfaces without quasi-isometric simplicial triangulations

Mar 30·1 min read·5 words

Complexity of Quadratic Bosonic Hamiltonian Simulation: $\mathsf{BQP}$-Completeness and $\mathsf{PostBQP}$-Hardness

Mar 30·1 min read·9 words

Fun Little Problems

Mar 29·1 min read·3 words

TR26-041 | A Note on Conditional Complexity Hardness of Matrix Rigidity and Tensor Rank | Nikolai Chukhin

Mar 29·1 min read·17 words

GandALF 2026: First call for papers

Mar 28·1 min read·6 words

My Oxford Term

Mar 25·1 min read·3 words

Strong Chain Quality

Mar 23·1 min read·3 words

TR26-040 | Communication Complexity of Disjointness under Product Distributions | Zach Hunter, Aleksa Milojevic, Benny Sudakov, Istvan Tomon

Mar 21·1 min read·18 words

PhD Position at BITS × RMIT (apply by March 28, 2026)

Mar 20·1 min read·11 words

Cosma Shalizi Is Aware of All Internet Traditions

Mar 20·1 min read·8 words

Smaller Depth-2 Linear Circuits for Disjointness Matrices

Mar 17·1 min read·7 words

Towards Exponential Quantum Improvements in Solving Cardinality-Constrained Binary Optimization

Mar 17·1 min read·9 words

Improved Online Hitting Set Algorithms for Structured and Geometric Set Systems

Mar 17·1 min read·11 words

The Counting General Dominating Set Framework

Mar 17·1 min read·6 words

The Compilability Thresholds of 2-CNF to OBDD

Mar 17·1 min read·7 words

Jaguar: A Primal Algorithm for Conjunctive Query Evaluation in Submodular-Width Time

Mar 17·1 min read·11 words

Minimal enclosing balls via geodesics

Mar 17·1 min read·5 words

Decision Quotient: A Regime-Sensitive Complexity Theory of Exact Relevance Certification

Mar 17·1 min read·10 words

Towards Parameterized Hardness on Maintaining Conjunctive Queries

Mar 17·1 min read·7 words

Lost in Aggregation: On a Fundamental Expressivity Limit of Message-Passing Graph Neural Networks

Mar 17·1 min read·13 words

TR26-039 | Super-quadratic Lower Bounds for Depth-2 Linear Threshold Circuits | Lijie Chen, Avishay Tal, Yichuan Wang

Mar 14·1 min read·17 words

News for February 2026

Mar 14·1 min read·4 words

On the Computational Hardness of Transformers

Mar 13·1 min read·6 words

Time, Message and Memory-Optimal Distributed Minimum Spanning Tree and Partwise Aggregation

Mar 13·1 min read·11 words

Bounding the Fragmentation of B-Trees Subject to Batched Insertions

Mar 13·1 min read·9 words

Deterministic Algorithm for Non-monotone Submodular Maximization under Matroid and Knapsack Constraints

Mar 13·1 min read·11 words

Approximate Dynamic Nearest Neighbor Searching in a Polygonal Domain

Mar 13·1 min read·9 words

Fast and exact visibility on digitized shapes and application to saliency-aware normal estimation

Mar 13·1 min read·13 words

On the maximum number of tangencies among $1$-intersecting curves

Mar 13·1 min read·9 words

On strictly output sensitive color frequency reporting

Mar 13·1 min read·7 words

Space-Efficient Approximate Spherical Range Counting in High Dimensions

Mar 13·1 min read·8 words

Visibly Recursive Automata

Mar 13·1 min read·3 words

TCS+ talk: Wednesday, March 18 — Chris Gartland, UNC Charlotte

Mar 12·1 min read·10 words

TR26-038 | Hardness Amplification Beyond Boolean Functions | Nobutaka Shimizu, Kenji Yasunaga

Mar 12·1 min read·12 words

Simple minimally unsatisfiable subsets of 2-CNFs

Mar 12·1 min read·6 words

Linear-Scaling Tensor Train Sketching

Mar 12·1 min read·4 words

Separating Oblivious and Adaptive Differential Privacy under Continual Observation

Mar 12·1 min read·9 words

Instruction set for the representation of graphs

Mar 12·1 min read·7 words

Sublinear-Time Reconfiguration of Programmable Matter with Joint Movements

Mar 12·1 min read·8 words

Large chirotopes with computable numbers of triangulations

Mar 12·1 min read·7 words

The Generation-Recognition Asymmetry: Six Dimensions of a Fundamental Divide in Formal Language Theory

Mar 12·1 min read·13 words

Huffman-Bucket Sketch: A Simple $O(m)$ Algorithm for Cardinality Estimation

Mar 12·1 min read·9 words

PhD position at Uppsala University (apply by April 7, 2026)

Mar 11·1 min read·10 words

Tetris is Hard with Just One Piece Type

Mar 11·1 min read·8 words

The Spanning Ratio of the Directed $Θ_6$-Graph is 5

Mar 11·1 min read·9 words

Simultaneous Embedding of Two Paths on the Grid

Mar 11·1 min read·8 words

Prismatoid Band-Unfolding Revisited

Mar 11·1 min read·3 words

Gap-ETH-Tight Algorithms for Hyperbolic TSP and Steiner Tree

Mar 11·1 min read·8 words

d-QBF with Few Existential Variables Revisited

Mar 11·1 min read·6 words

Reinforced Generation of Combinatorial Structures: Ramsey Numbers

Mar 11·1 min read·7 words

A Simple Constructive Bound on Circuit Size Change Under Truth Table Perturbation

Mar 11·1 min read·12 words

The framework to unify all complexity dichotomy theorems for Boolean tensor networks

Mar 11·1 min read·12 words

Has quantum advantage been achieved?

Mar 11·1 min read·5 words

Scott Aaronson’s View of my View About Quantum Computing

Mar 10·1 min read·9 words

Doctoral student at West Virginia University (apply by March 31, 2026)

Mar 10·1 min read·11 words

Benchmarking Culture

Mar 10·1 min read·2 words

Quantum information advantage based on Bell inequalities

Mar 10·1 min read·7 words

Intrinsic Sequentiality in P: Causal Limits of Parallel Computation

Mar 10·1 min read·9 words

The Unit Gap: How Sharing Works in Boolean Circuits

Mar 10·1 min read·9 words

A base change framework for tensor functions

Mar 10·1 min read·7 words

On Factorization of Sparse Polynomials of Bounded Individual Degree

Mar 10·1 min read·9 words

Minimal Updates

Mar 9·1 min read·2 words

Classical simulability of quantum circuits followed by sparse classical post-processing

Mar 9·1 min read·10 words

Space-efficient B-tree Implementation for Memory-Constrained Flash Embedded Devices

Mar 9·1 min read·8 words

How to Sort in a Refrigerator: Simple Entropy-Sensitive Strictly In-Place Sorting Algorithms

Mar 9·1 min read·12 words

Agnostic learning in (almost) optimal time via Gaussian surface area

Mar 9·1 min read·10 words

Forwarding Packets Greedily

Mar 9·1 min read·3 words

Transversal Rank, Conformality and Enumeration

Mar 9·1 min read·5 words

Recognizing Subgraphs of Regular Tilings

Mar 9·1 min read·5 words

Intrinsic Information Flow in Structureless NP Search

Mar 9·1 min read·7 words

How does AI do on Baseball-Brothers-Pitchers

Mar 8·1 min read·6 words

28th Estonian Winter School in Computer Science

Mar 8·1 min read·7 words

TR26-036 | On Factorization of Sparse Polynomials of Bounded Individual Degree | Aminadav Chuyoon, Amir Shpilka

Mar 8·1 min read·16 words

TR26-035 | Learning Read-Once Determinants and the Principal Minor Assignment Problem | Abhiram Aravind, Abhranil Chatterjee, Sumanta Ghosh, Rohit Gurjar, Roshan Raj, Chandan Saha

Mar 8·1 min read·24 words

The ”JVG algorithm” is crap

Mar 8·1 min read·5 words

Postdoc and PhD Positions at LMU Munich (apply by May 1, 2026)

Mar 7·1 min read·12 words

TR26-034 | Limit on the computational power of $\mathrm{C}$-random strings | Alexey Milovanov

Mar 7·1 min read·13 words

For All The Cows

Mar 6·1 min read·4 words

The Fully Depolarizing Noise Conjecture for Physical Cat States is Twenty Years Old!

Mar 6·1 min read·13 words

Mysticeti: Revolutionizing Consensus on Sui

Mar 6·1 min read·5 words

Garment numbers of bi-colored point sets in the plane

Mar 6·1 min read·9 words

Reconfiguration of Squares Using a Constant Number of Moves Each

Mar 6·1 min read·10 words

Structural Properties of Shortest Flip Sequences Between Plane Spanning Trees

Mar 6·1 min read·10 words

What induces plane structures in complete graph drawings?

Mar 6·1 min read·8 words

Drone Air Traffic Control: Tracking a Set of Moving Objects with Minimal Power

Mar 6·1 min read·13 words

Attacking the Polynomials in the Maze of Finite Fields problem

Mar 6·1 min read·10 words

Recurrent Graph Neural Networks and Arithmetic Circuits

Mar 6·1 min read·7 words

Moar Updatez

Mar 5·1 min read·2 words

Learning From the Mess

Mar 5·1 min read·4 words

Closed-form dynamics beyond quadratics

Mar 5·1 min read·4 words

Strong Chain Quality

Mar 5·1 min read·3 words

Why Are Linear RNNs More Parallelizable?

Mar 5·1 min read·6 words

When Relaxation Does Not Help: RLDCs with Small Soundness Yield LDCs

Mar 5·1 min read·11 words

Advances in List Decoding of Polynomial Codes

Mar 5·1 min read·7 words

Learning Read-Once Determinants and the Principal Minor Assignment Problem

Mar 5·1 min read·9 words

Truth Predicate of Inductive Definitions and Logical Complexity of Infinite-Descent Proofs

Mar 5·1 min read·11 words

Stringology-Based Motif Discovery from EEG Signals: an ADHD Case Study

Mar 5·1 min read·10 words

Ultrabubble enumeration via a lowest common ancestor approach

Mar 5·1 min read·8 words

Planar Graph Orientation Frameworks, Applied to KPlumber and Polyomino Tiling

Mar 5·1 min read·10 words

Feedback requested for the complexity book “Mathematics of the impossible”

Mar 4·1 min read·10 words

The Vital Amines

Mar 4·1 min read·3 words

The Purpose of Proofs

Mar 4·1 min read·4 words

Mass surveillance, red lines, and a crazy weekend

Mar 4·1 min read·8 words

Required-edge Cycle Cover Problem: an ASP-Completeness Framework for Graph Problems and Puzzles

Mar 4·1 min read·12 words

Low-Degree Method Fails to Predict Robust Subspace Recovery

Mar 4·1 min read·8 words

Lozenge Tiling by Computing Distances

Mar 4·1 min read·5 words

Geometric structures and deviations on James' symmetric positive-definite matrix bicone domain

Mar 4·1 min read·11 words

Tilt Automata: Gathering Particles With Uniform External Control

Mar 4·1 min read·8 words

Grounded String Representations of Series-Parallel Graphs without Transitive Edges

Mar 4·1 min read·9 words

Matrices with displacement structure: a deterministic approach for linear systems and nullspace bases

Mar 4·1 min read·13 words

Quantum Algorithms for Approximate Graph Isomorphism Testing

Mar 4·1 min read·7 words

Optimal play in Yu-Gi-Oh! TCG is hard

Mar 4·1 min read·7 words

Hardness of the Binary Covering Radius Problem in Large $\ell_p$ Norms

Mar 4·1 min read·11 words

Compatible Triangulations of Simple Polygons

Mar 3·1 min read·5 words

A note on Jerabek's paper "A simplified lower bound for implicational logic"

Mar 3·1 min read·12 words

Partition-based Simple Heaps

Mar 3·1 min read·3 words

Achievability of Heterogeneous Hypergraph Recovery from its Graph Projection

Mar 3·1 min read·9 words

A Unified Approach to Memory-Sample Tradeoffs for Detecting Planted Structures

Mar 3·1 min read·10 words

MergeDJD: A Fast Constructive Algorithm with Piece Merging for the Two-Dimensional Irregular Bin Packing Problem

Mar 3·1 min read·15 words

Towards Computing Average Merge Tree Based on the Interleaving Distance

Mar 3·1 min read·10 words

PARWiS: Winner determination under shoestring budgets using active pairwise comparisons

Mar 3·1 min read·10 words

Hexasort -- The Complexity of Stacking Colors on Graphs

Mar 3·1 min read·9 words

NP-Completeness and Physical Zero-Knowledge Proof of Hotaru Beam

Mar 3·1 min read·8 words

Completing the Complexity Classification of 2-Solo Chess: Knights and Kings are Hard

Mar 3·1 min read·12 words

At least it's an ethos?

Mar 2·1 min read·5 words

TR26-033 | Simple XOR lemma | Emanuele Viola

Mar 2·1 min read·8 words

Goodhart's law: Ken Jennings and Types of Knowledge

Mar 2·1 min read·8 words

GPU-Native Approximate Nearest Neighbor Search with IVF-RaBitQ: Fast Index Build and Search

Mar 2·1 min read·12 words

Stochastic Knapsack -- Semi-Adaptivity Gaps and Improved Approximation

Mar 2·1 min read·8 words

Better Learning-Augmented Spanning Tree Algorithms via Metric Forest Completion

Mar 2·1 min read·9 words

Spiky Rank and Its Applications to Rigidity and Circuits

Mar 2·1 min read·9 words

On the Need for (Quantum) Memory with Short Outputs

Mar 2·1 min read·9 words

Black-Box PWPP Is Not Turing-Closed

Mar 2·1 min read·5 words

Sandwiching Polynomials for Geometric Concepts with Low Intrinsic Dimension

Mar 2·1 min read·9 words

An improved Lower Bound for Local Failover in Directed Networks via Binary Covering Arrays

Mar 2·1 min read·14 words

Variants of Merge-Width and Applications

Mar 2·1 min read·5 words

Making accessible LaTeX talk slides with ltx-talk

Mar 1·1 min read·7 words

Linkage

Feb 28·1 min read·1 words

TR26-032 | Advances in List Decoding of Polynomial Codes | Mrinal Kumar, Noga Ron-Zewi

Feb 28·1 min read·14 words

Anthropic: Stay strong!

Feb 27·1 min read·3 words

Defining Normal to See Abnormal

Feb 27·1 min read·5 words

TR26-031 | On the Need for (Quantum) Memory with Short Outputs | Zihan Hao, Zikuan Huang, Qipeng Liu

Feb 27·1 min read·18 words

Faster algorithms for graph homomorphism via tractable constraint satisfaction

Feb 27·1 min read·9 words

Isolation critical graphs under multiple edge subdivision

Feb 27·1 min read·7 words

Mean Estimation from Coarse Data: Characterizations and Efficient Algorithms

Feb 27·1 min read·9 words

Flip Distance of Triangulations of Convex Polygons / Rotation Distance of Binary Trees is NP-complete

Feb 27·1 min read·15 words

Dequantization Barriers for Guided Stoquastic Hamiltonians

Feb 27·1 min read·6 words

Equivalent Dichotomies for Triangle Detection in Subgraph, Induced, and Colored H-Free Graphs

Feb 27·1 min read·12 words

Learning Tangent Bundles and Characteristic Classes with Autoencoder Atlases

Feb 27·1 min read·9 words

FLIGHT: Fibonacci Lattice-based Inference for Geometric Heading in real-Time

Feb 27·1 min read·9 words

Dynamic Level Sets

Feb 27·1 min read·3 words

Results on three problems on isolation of graphs

Feb 27·1 min read·8 words

TR26-030 | Spiky Rank and Its Applications to Rigidity and Circuits | Lianna Hambardzumyan, Konstantin Myasnikov, Artur Riazanov, Morgan Shirley, Adi Shraibman

Feb 26·1 min read·22 words

Ratts of the Capital

Feb 26·1 min read·4 words

The Lens of Abelian Embeddings

Feb 26·1 min read·5 words

Tight Bounds for Online Scheduling in the One-Fast-Many-Slow Machines Setting

Feb 26·1 min read·10 words

Robust Permutation Flowshops Under Budgeted Uncertainty

Feb 26·1 min read·6 words

Sample Complexity Bounds for Robust Mean Estimation with Mean-Shift Contamination

Feb 26·1 min read·10 words

Optimal Trajectories in Discrete Space with Acceleration Constraints

Feb 26·1 min read·8 words

Steiner Forest for $H$-Subgraph-Free Graphs

Feb 26·1 min read·5 words

(Semi-)Invariant Curves from Centers of Triangle Families

Feb 26·1 min read·7 words

Two NP-hard Extensions of the Spearman Footrule even for a Small Constant Number of Voters

Feb 26·1 min read·15 words

Cosmin Pohoata: The Cayley-Bacharach theorem and its applications

Feb 25·1 min read·8 words

A Single Grain Experiment

Feb 25·1 min read·4 words

A Probability Challenge

Feb 25·1 min read·3 words

Frontier Space-Time Algorithms Using Only Full Memory

Feb 25·1 min read·7 words

Incomplete Open Platonic Solids

Feb 25·1 min read·4 words

A Morton-Type Space-Filling Curve for Pyramid Subdivision and Hybrid Adaptive Mesh Refinement

Feb 25·1 min read·12 words

Singular Arrange and Traverse Algorithm for Computing Reeb Spaces of Bivariate PL Maps

Feb 25·1 min read·13 words

Exponential Lower Bounds for 2-query Relaxed Locally Decodable Codes

Feb 25·1 min read·9 words

Markets are competitive if and only if P != NP

Feb 25·1 min read·10 words

Is a LOCAL algorithm computable?

Feb 25·1 min read·5 words

Polynomial Identity Testing and Reconstruction for Depth-4 Powering Circuits of High Degree

Feb 25·1 min read·12 words

Statistical Query Lower Bounds for Smoothed Agnostic Learning

Feb 25·1 min read·8 words

A Space-space Trade-off for Directed st-Connectivity

Feb 25·1 min read·6 words

Can anyone fix science?

Feb 24·1 min read·4 words

TR26-029 | Polynomial Identity Testing and Reconstruction for Depth-4 Powering Circuits of High Degree | Amir Shpilka, Yann Tal

Feb 24·1 min read·19 words

Embedding arbitrary Boolean circuits into fungal automata with arbitrary update sequences

Feb 24·1 min read·11 words

The Sample Complexity of Replicable Realizable PAC Learning

Feb 24·1 min read·8 words

Analyzing and Leveraging the $k$-Sensitivity of LZ77

Feb 24·1 min read·7 words

Fast and simple multiplication of bounded twin-width matrices

Feb 24·1 min read·8 words

Dynamic 3D Convex Hulls Revisited and Applications

Feb 24·1 min read·7 words

On Voronoi diagrams in the Funk Conical Geometry

Feb 24·1 min read·8 words

$L_1$-distortion of Earth Mover Distances and Transportation Cost Spaces on High Dimensional Grids

Feb 24·1 min read·13 words

Structured Bitmap-to-Mesh Triangulation for Geometry-Aware Discretization of Image-Derived Domains

Feb 24·1 min read·9 words

Hypersequent Calculi Have Ackermannian Complexity

Feb 24·1 min read·5 words

Parallelism and Adaptivity in Student-Teacher Witnessing

Feb 24·1 min read·6 words

TCS+ talk: Wednesday, March 4 — Sophie Huiberts, CNRS

Feb 23·1 min read·9 words

Maximum Principles

Feb 23·1 min read·2 words

Hilbert's Nullstellensatz is in the Counting Hierarchy

Feb 23·1 min read·7 words

QPTAS for MWIS and finding large sparse induced subgraphs in graphs with few independent long holes

Feb 23·1 min read·16 words

Generating minimal redundant and maximal irredundant sets in incidence graphs

Feb 23·1 min read·10 words

Improved Algorithms for Clustering with Noisy Distance Oracles

Feb 23·1 min read·8 words

Unifying Formal Explanations: A Complexity-Theoretic Perspective

Feb 23·1 min read·6 words

Euclidean Noncrossing Steiner Spanners of Nearly Optimal Sparsity

Feb 23·1 min read·8 words

Convergent Gate Elimination and Constructive Circuit Lower Bounds

Feb 23·1 min read·8 words

Policy Gradient Algorithms in Average-Reward Multichain MDPs

Feb 23·1 min read·7 words

Complexity lower bounds for succinct binary structures of bounded clique-width with restrictions

Feb 23·1 min read·12 words

The Complexity of Sparse Win-Lose Bimatrix Games

Feb 23·1 min read·7 words

TR26-028 | Weak Zero-Knowledge and One-Way Functions | Rohit Chatterjee, Yunqi Li, Prashant Nalini Vasudevan

Feb 22·1 min read·15 words

TR26-027 | Efficient quantum circuits for high-dimensional representations of SU(n) and Ramanujan quantum expanders | Siddhartha Jain, Vishnu Iyer, Stephen Jordan, Rolando Somma

Feb 22·1 min read·23 words

TR26-026 | When Hilbert approximates: A Strong Nullstellensatz for Approximate Polynomial Satisfiability | Sanyam Agarwal, Sagnik Dutta, Anurag Pandey, Himanshu Shukla

Feb 20·1 min read·21 words

TR26-025 | Beyond Bilinear Complexity: What Works and What Breaks with Many Modes? | Cornelius Brand, Radu Curticapean, Petteri Kaski, Baitian Li, Ian Orzel, Tim Seppelt, Jiaheng Wang

Feb 20·1 min read·28 words

TR26-024 | Hilbert’s Nullstellensatz is in the Counting Hierarchy | Robert Andrews, Abhibhav Garg, Éric Schost

Feb 20·1 min read·16 words

Computational Hardness of Private Coreset

Feb 20·1 min read·5 words

On the complexity of covering points by disjoint segments and by guillotine cuts

Feb 20·1 min read·13 words

Separations above TFNP from Sherali-Adams Lower Bounds

Feb 20·1 min read·7 words

Some Remarks on Marginal Code Languages

Feb 20·1 min read·6 words

Pseudo-deterministic Quantum Algorithms

Feb 20·1 min read·3 words

Provably Explaining Neural Additive Models

Feb 20·1 min read·5 words

Partial Optimality in the Preordering Problem

Feb 20·1 min read·6 words

Convergence Analysis of Two-Layer Neural Networks under Gaussian Input Masking

Feb 20·1 min read·10 words

Informative Trains: A Memory-Efficient Journey to a Self-Stabilizing Leader Election Algorithm in Anonymous Graphs

Feb 20·1 min read·14 words

Simultaneous Blackwell Approachability and Applications to Multiclass Omniprediction

Feb 20·1 min read·8 words

Improved Bounds for Discrete Voronoi Games

Feb 19·1 min read·6 words

Steering diffusion models with quadratic rewards: a fine-grained analysis

Feb 19·1 min read·9 words

Fast Shortest Path in Graphs With Sparse Signed Tree Models and Applications

Feb 19·1 min read·12 words

An $n^{2+o(1)}$ Time Algorithm for Single-Source Negative Weight Shortest Paths

Feb 19·1 min read·10 words

Protecting the Undeleted in Machine Unlearning

Feb 19·1 min read·6 words

Dynamic and Streaming Algorithms for Union Volume Estimation

Feb 19·1 min read·8 words

Submodular Maximization under Supermodular Constraint: Greedy Guarantees

Feb 19·1 min read·7 words

On the Hardness of Approximation of the Fair k-Center Problem

Feb 19·1 min read·10 words

Ratio Covers of Convex Sets and Optimal Mixture Density Estimation

Feb 19·1 min read·10 words

Nash-convergence of Game Dynamics and Complexity

Feb 19·1 min read·6 words

Devezer's Urn

Feb 18·1 min read·2 words

Joe Halpern (1953-2025)

Feb 18·1 min read·3 words

postdoc at ENS Lyon (apply by April 3, 2026)

Feb 18·1 min read·9 words

TR26-023 | Separations above TFNP from Sherali-Adams Lower Bounds | Anna Gal, Noah Fleming, Deniz imrek, Christophe Marciot

Feb 18·1 min read·18 words

Natural Privacy Filters Are Not Always Free: A Characterization of Free Natural Filters

Feb 18·1 min read·13 words

Revisiting the Sparse Matrix Compression Problem

Feb 18·1 min read·6 words

Testing Monotonicity of Real-Valued Functions on DAGs

Feb 18·1 min read·7 words

Self-dual Stacked Quantum Low-Density Parity-Check Codes

Feb 18·1 min read·6 words

Memory Reallocation with Polylogarithmic Overhead

Feb 18·1 min read·5 words

Fair Correlation Clustering Meets Graph Parameters

Feb 18·1 min read·6 words

A Weighted-to-Unweighted Reduction for Matroid Intersection

Feb 18·1 min read·6 words

Local Node Differential Privacy

Feb 18·1 min read·4 words

Efficient quantum circuits for high-dimensional representations of SU(n) and Ramanujan quantum expanders

Feb 18·1 min read·12 words

Polynomial-time isomorphism test for $k$-generated extensions of abelian groups

Feb 18·1 min read·9 words

The antiferromagnetic Ising model beyond line graphs

Feb 17·1 min read·7 words

Robust Value Maximization in Challenge the Champ Tournaments with Probabilistic Outcomes

Feb 17·1 min read·11 words

Expander Decomposition with Almost Optimal Overhead

Feb 17·1 min read·6 words

Fine-Grained Complexity for Quantum Problems from Size-Preserving Circuit-to-Hamiltonian Constructions

Feb 17·1 min read·9 words

Lower Estimates for $L_1$-Distortion of Transportation Cost Spaces

Feb 17·1 min read·8 words

Morphing of and writing with a scissor linkage mechanism

Feb 17·1 min read·9 words

An Algebraic Rigidity Framework for Order-Oblivious Deterministic Black-Box PIT of ROABPs

Feb 17·1 min read·11 words

Affine Rank Minimization is ER Complete

Feb 17·1 min read·6 words

Graph Homomorphisms and Universal Algebra

Feb 17·1 min read·5 words

Geometric Characterization of Context-Free Intersections via the Inner Segment Dichotomy

Feb 17·1 min read·10 words

9th Workshop on Algebraic Complexity Theory

Feb 16·1 min read·6 words

TR26-022 | Catalytic Tree Evaluation From Matching Vectors | Alexandra Henzinger, Edward Pyne, Seyoon Ragavan

Feb 16·1 min read·15 words

TR26-021 | Failure of Symmetry of Information for Randomized Computations | Jinqiao Hu, Yahel Manor, Igor Oliveira

Feb 16·1 min read·17 words

Classification of Local Optimization Problems in Directed Cycles

Feb 16·1 min read·8 words

Which Algorithms Can Graph Neural Networks Learn?

Feb 16·1 min read·7 words

Learning to Approximate Uniform Facility Location via Graph Neural Networks

Feb 16·1 min read·10 words

Improved Regret Guarantees for Online Mirror Descent using a Portfolio of Mirror Maps

Feb 16·1 min read·13 words

Limits of Kernelization and Parametrization for Phylogenetic Diversity with Dependencies

Feb 16·1 min read·10 words

A New Approach in Plane Kinematics

Feb 16·1 min read·6 words

Completeness in the Polynomial Hierarchy and PSPACE for many natural problems derived from NP

Feb 16·1 min read·14 words

Nonlinear methods for tensors: determinantal equations for secant varieties beyond cactus

Feb 16·1 min read·11 words

Between proper and square coloring of planar graphs, hardness and extremal graphs

Feb 16·1 min read·12 words

Complex to Rational Fast Matrix Multiplication

Feb 16·1 min read·6 words

TR26-020 | Separating Quantum and Classical Advice with Good Codes | Andrew Huang, John Bostanci, Vinod Vaikuntanathan

Feb 15·1 min read·17 words

Linkage

Feb 15·1 min read·1 words

TR26-019 | Improved Parallel Repetition for GHZ-Supported Games via Spreadness | Shachar Lovett, Yang P. Liu, Kunal Mittal

Feb 15·1 min read·18 words

PhD at University of Alaska Fairbanks (apply by March 16, 2026)

Feb 13·1 min read·11 words

Beyond Latency and Communication Complexity - A Tutorial on the Pipes Model

Feb 13·1 min read·12 words

Block Stacking, Airplane Refueling, and Robust Appointment Scheduling

Feb 13·1 min read·8 words

Optimizing Distances for Multi-Broadcast in Temporal Graphs

Feb 13·1 min read·7 words

Improved Online Algorithms for Inventory Management Problems with Holding and Delay Costs: Riding the Wave Makes Things Simpler, Stronger, & More General

Feb 13·1 min read·22 words

An Improved FPT Algorithm for Computing the Interleaving Distance between Merge Trees via Path-Preserving Maps

Feb 13·1 min read·15 words

Gray Codes With Constant Delay and Constant Auxiliary Space

Feb 13·1 min read·9 words

Keeping a Secret Requires a Good Memory: Space Lower-Bounds for Private Algorithms

Feb 13·1 min read·12 words

Data-Driven Trajectory Imputation for Vessel Mobility Analysis

Feb 13·1 min read·7 words

New Planar Algorithms and a Full Complexity Classification of the Eight-Vertex Model

Feb 13·1 min read·12 words

A Note on the Complexity of Directed Clique

Feb 13·1 min read·8 words

Beyond Bilinear Complexity: What Works and What Breaks with Many Modes?

Feb 13·1 min read·11 words

TR26-018 | Resolution Width Lifts to Near-Quadratic-Depth Res($\oplus$) Size | Dmitry Itsykson, Vladimir Podolskii, Alexander Shekhovtsov

Feb 12·1 min read·16 words

Information Theory in Modern Science 2026

Feb 12·1 min read·6 words

TR26-017 | Multiplicative Pseudorandom Generators for Nondeterministic Circuits | Ronen Shaltiel, Alon Dermer

Feb 12·1 min read·13 words

The Complexity of Strategic Behavior in Primary Elections

Feb 12·1 min read·8 words

Self-referential instances of the dominating set problem are irreducible

Feb 12·1 min read·9 words

Necessary President in Elections with Parties

Feb 12·1 min read·6 words

Implementation of Polynomial NP-Complete Algorithms Based on the NP Verifier Simulation Framework

Feb 12·1 min read·12 words

Splitting Sandwiches Unevenly via Unique Sink Orientations and Rainbow Arrangements

Feb 12·1 min read·10 words

Tenure-Track Assistant Professor (Research) at University of Calgary (apply by March 5, 2026)

Feb 11·1 min read·13 words

Searching for Stability

Feb 11·1 min read·3 words

Optimal PRGs for Low-Degree Polynomials over Polynomial-Size Fields

Feb 11·1 min read·8 words

Beyond a Single Queue: Multi-Level-Multi-Queue as an Effective Design for SSSP problems on GPUs

Feb 11·1 min read·14 words

Fréchet Distance in the Imbalanced Case

Feb 11·1 min read·6 words

The Parameterized Complexity of Geometric 1-Planarity

Feb 11·1 min read·6 words

Improved Parallel Repetition for GHZ-Supported Games via Spreadness

Feb 11·1 min read·8 words

A Theory for Probabilistic Polynomial-Time Reasoning

Feb 11·1 min read·6 words

Separating Quantum and Classical Advice with Good Codes

Feb 11·1 min read·8 words

Higher Hardness Results for the Reconfiguration of Odd Matchings

Feb 11·1 min read·9 words

On the complexity of Sandwich Problems for $M$-partitions

Feb 11·1 min read·8 words

Some conditions implying if P=NP then P=PSPACE

Feb 11·1 min read·7 words

TR26-016 | Optimal PRGs for Low-Degree Polynomials over Polynomial-Size Fields | Gil Cohen, Dean Doron, Noam Goldgraber

Feb 10·1 min read·17 words

MotionCrafter: Dense Geometry and Motion Reconstruction with a 4D VAE

Feb 10·1 min read·10 words

The Quantumly Fast and the Classically Forrious

Feb 10·1 min read·7 words

VERIFY-RL: Verifiable Recursive Decomposition for Reinforcement Learning in Mathematical Reasoning

Feb 10·1 min read·10 words

Determining the Outerthickness of Graphs Is NP-Hard

Feb 10·1 min read·7 words

Expansive homeomorphisms on complexity quasi-metric spaces

Feb 10·1 min read·6 words

On the complexity of Multipacking

Feb 10·1 min read·5 words

Plethysm is in #BQP

Feb 10·1 min read·4 words

Debate is efficient with your time

Feb 10·1 min read·6 words

Advanced Simplicity

Feb 9·1 min read·2 words

Doctoral student at West Virginia University (apply by March 15, 2026)

Feb 9·1 min read·11 words

Trevisan Award for Expository Work

Feb 5·1 min read·5 words

Lust for life

Feb 5·1 min read·3 words

Postdoc at West Virginia University (apply by May 1, 2026)

Feb 5·1 min read·10 words