Undirected (1+𝜀)-shortest paths via minor-aggregates: near-optimal deterministic parallel and distributed algorithms

V Rozhoň, C Grunau, B Haeupler, G Zuzic… - Proceedings of the 54th …, 2022 - dl.acm.org
This paper presents near-optimal deterministic parallel and distributed algorithms for
computing (1+ eps)-approximate single-source shortest paths in any undirected weighted …

Deterministic distributed vertex coloring: Simpler, faster, and without network decomposition

M Ghaffari, F Kuhn - 2021 IEEE 62nd Annual Symposium on …, 2022 - ieeexplore.ieee.org
We present a simple deterministic distributed algorithm that computes a (Δ+1)-vertex
coloring in O(log^2Δ.log\n) rounds. The algorithm can be implemented with O(log\n)-bit …

Faster deterministic distributed MIS and approximate matching

M Ghaffari, C Grunau - Proceedings of the 55th Annual ACM Symposium …, 2023 - dl.acm.org
We present an Õ (log2 n) round deterministic distributed algorithm for the maximal
independent set problem. By known reductions, this round complexity extends also to …

Local distributed rounding: Generalized to mis, matching, set cover, and beyond

S Faour, M Ghaffari, C Grunau, F Kuhn… - Proceedings of the 2023 …, 2023 - SIAM
We develop a general deterministic distributed method for locally rounding fractional
solutions of graph problems for which the analysis can be broken down into analyzing pairs …

Improved distributed network decomposition, hitting sets, and spanners, via derandomization

M Ghaffari, C Grunau, B Haeupler, S Ilchi… - Proceedings of the 2023 …, 2023 - SIAM
This paper presents significantly improved deterministic algorithms for some of the key
problems in the area of distributed graph algorithms, including network decomposition …

Local problems on grids from the perspective of distributed algorithms, finitary factors, and descriptive combinatorics

J Grebík, V Rozhoň - Advances in Mathematics, 2023 - Elsevier
We present an intimate connection among the following fields:(a) distributed local
algorithms: coming from the area of computer science,(b) finitary factors of iid processes …

Efficient randomized distributed coloring in CONGEST

MM Halldórsson, F Kuhn, Y Maus… - Proceedings of the 53rd …, 2021 - dl.acm.org
Distributed vertex coloring is one of the classic problems and probably also the most widely
studied problems in the area of distributed graph algorithms. We present a new randomized …

Deterministic low-diameter decompositions for weighted graphs and distributed and parallel applications

V Rozhoň, M Elkin, C Grunau… - 2022 IEEE 63rd Annual …, 2022 - ieeexplore.ieee.org
This paper presents new deterministic and distributed low-diameter decomposition
algorithms for weighted graphs. In particular, we show that if one can efficiently compute …

Distributed∆-coloring plays hide-and-seek

A Balliu, S Brandt, F Kuhn, D Olivetti - … of the 54th Annual ACM SIGACT …, 2022 - dl.acm.org
We prove several new tight or near-tight distributed lower bounds for classic symmetry
breaking problems in graphs. As a basic tool, we first provide a new insightful proof that any …

List defective colorings: Distributed algorithms and applications

M Fuchs, F Kuhn - arXiv preprint arXiv:2304.09666, 2023 - arxiv.org
The distributed coloring problem is at the core of the area of distributed graph algorithms
and it is a problem that has seen tremendous progress over the last few years. Much of the …