Local problems on trees from the perspectives of distributed algorithms, finitary factors, and descriptive combinatorics

S Brandt, YJ Chang, J Grebík, C Grunau… - arXiv preprint arXiv …, 2021 - arxiv.org
We study connections between distributed local algorithms, finitary factors of iid processes,
and descriptive combinatorics in the context of regular trees. We extend the Borel …

Locally checkable labelings with small messages

A Balliu, K Censor-Hillel, Y Maus, D Olivetti… - arXiv preprint arXiv …, 2021 - arxiv.org
A rich line of work has been addressing the computational complexity of locally checkable
labelings (LCLs), illustrating the landscape of possible complexities. In this paper, we study …

The landscape of distributed complexities on trees and beyond

C Grunau, V Rozhoň, S Brandt - … of the 2022 ACM Symposium on …, 2022 - dl.acm.org
We study the local complexity landscape of locally checkable labeling (LCL) problems on
constant-degree graphs with a focus on complexities below log* n. Our contribution is …

Exponential speedup over locality in MPC with optimal memory

A Balliu, S Brandt, M Fischer, R Latypov… - arXiv preprint arXiv …, 2022 - arxiv.org
Locally Checkable Labeling (LCL) problems are graph problems in which a solution is
correct if it satisfies some given constraints in the local neighborhood of each node. Example …

Online Locality Meets Distributed Quantum Computing

A Akbari, X Coiteux-Roy, F d'Amore, FL Gall… - arXiv preprint arXiv …, 2024 - arxiv.org
We extend the theory of locally checkable labeling problems (LCLs) from the classical
LOCAL model to a number of other models that have been studied recently, including the …

Shared Randomness Helps with Local Distributed Problems

A Balliu, M Ghaffari, F Kuhn, A Modanese… - arXiv preprint arXiv …, 2024 - arxiv.org
By prior work, we have many results related to distributed graph algorithms for problems that
can be defined with local constraints; the formal framework used in prior work is locally …

Efficient classification of locally checkable problems in regular trees

A Balliu, S Brandt, YJ Chang, D Olivetti… - arXiv preprint arXiv …, 2022 - arxiv.org
We give practical, efficient algorithms that automatically determine the asymptotic distributed
round complexity of a given locally checkable graph problem in the $[\Theta (\log n),\Theta …

Distributed graph problems through an automata-theoretic lens

YJ Chang, J Studený, J Suomela - International Colloquium on Structural …, 2021 - Springer
The locality of a graph problem is the smallest distance T such that each node can choose
its own part of the solution based on its radius-T neighborhood. In many settings, a graph …

Distributed Quantum Advantage for Local Problems

A Balliu, S Brandt, X Coiteux-Roy, F d'Amore… - arXiv preprint arXiv …, 2024 - arxiv.org
We present the first local problem that shows a super-constant separation between the
classical randomized LOCAL model of distributed computing and its quantum counterpart …

On the node-averaged complexity of locally checkable problems on trees

A Balliu, S Brandt, F Kuhn, D Olivetti… - arXiv preprint arXiv …, 2023 - arxiv.org
Over the past decade, a long line of research has investigated the distributed complexity
landscape of locally checkable labeling (LCL) problems on bounded-degree graphs …