# Distributed Planar Reachability in Nearly Optimal Time

@inproceedings{Parter2020DistributedPR,
title={Distributed Planar Reachability in Nearly Optimal Time},
author={Merav Parter},
booktitle={DISC},
year={2020}
}
We present nearly optimal distributed algorithms for fundamental reachability problems in planar graphs. In the single-source reachability problem given is an n-vertex directed graph G = (V, E) and a source node s, it is required to determine the subset of nodes that are reachable from s in G. We present the first distributed reachability algorithm for planar graphs that runs in nearly optimal time of Õ(D) rounds, where D is the undirected diameter of the graph. This improves the complexity of… Expand
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