A faster combinatorial algorithm for maximum bipartite matching

J Chuzhoy, S Khanna - Proceedings of the 2024 Annual ACM-SIAM …, 2024 - SIAM
The maximum bipartite matching problem is among the most fundamental and well-studied
problems in combinatorial optimization. A beautiful and celebrated combinatorial algorithm …

[PDF][PDF] New graph decompositions and combinatorial boolean matrix multiplication algorithms

A Abboud, N Fischer, Z Kelley, S Lovett… - Proceedings of the 56th …, 2024 - dl.acm.org
We revisit the fundamental Boolean Matrix Multiplication (BMM) problem. With the invention
of algebraic fast matrix multiplication over 50 years ago, it also became known that BMM can …

A dynamic shortest paths toolbox: Low-congestion vertex sparsifiers and their applications

R Kyng, S Meierhans, M Probst Gutenberg - Proceedings of the 56th …, 2024 - dl.acm.org
We present a general toolbox, based on new vertex sparsifiers, for designing data structures
to maintain shortest paths in graphs undergoing edge insertions and/or deletions. In …

Listing 6-cycles

C Jin, VV Williams, R Zhou - 2024 Symposium on Simplicity in Algorithms …, 2024 - SIAM
Listing copies of small subgraphs (such as triangles, 4-cycles, small cliques) in the input
graph is an important and well-studied problem in algorithmic graph theory. In this paper, we …

Maximum Bipartite Matching in Time via a Combinatorial Algorithm

J Chuzhoy, S Khanna - arXiv preprint arXiv:2405.20861, 2024 - arxiv.org
Maximum bipartite matching (MBM) is a fundamental problem in combinatorial optimization
with a long and rich history. A classic result of Hopcroft and Karp (1973) provides an $ O …

The time complexity of fully sparse matrix multiplication

A Abboud, K Bringmann, N Fischer… - Proceedings of the 2024 …, 2024 - SIAM
What is the time complexity of matrix multiplication of sparse integer matrices with m in
nonzeros in the input and m out nonzeros in the output? This paper provides improved …

Fast 2-approximate all-pairs shortest paths

M Dory, S Forster, Y Kirkpatrick, Y Nazari… - Proceedings of the 2024 …, 2024 - SIAM
In this paper, we revisit the classic approximate All-Pairs Shortest Paths (APSP) problem in
undirected graphs. For unweighted graphs, we provide an algorithm for 2-approximate …

Bootstrapping dynamic distance oracles

S Forster, G Goranci, Y Nazari, A Skarlatos - arXiv preprint arXiv …, 2023 - arxiv.org
Designing approximate all-pairs distance oracles in the fully dynamic setting is one of the
central problems in dynamic graph algorithms. Despite extensive research on this topic, the …

Deterministic fully dynamic sssp and more

J Van Den Brand, A Karczmarz - 2023 IEEE 64th Annual …, 2023 - ieeexplore.ieee.org
We present the first non-trivial fully dynamic algorithm maintaining exact single-source
distances in unweighted graphs. This resolves an open problem stated by Sankowski …

Deterministic 3sum-hardness

N Fischer, P Kaliciak, A Polak - arXiv preprint arXiv:2310.12913, 2023 - arxiv.org
As one of the three main pillars of fine-grained complexity theory, the 3SUM problem
explains the hardness of many diverse polynomial-time problems via fine-grained …