# Brief announcement: Sinkless orientation is hard also in the supported LOCAL model

DISC 2021 · 35th International Symposium on Distributed Computing, online, October 2021 ·

# Abstract

We show that any algorithm that solves the sinkless orientation problem in the supported LOCAL model requires $\Omega(\log n)$ rounds, and this is tight. The supported LOCAL is at least as strong as the usual LOCAL model, and as a corollary this also gives a new, short and elementary proof that shows that the round complexity of the sinkless orientation problem in the deterministic LOCAL model is $\Omega(\log n)$.

# Publication

Seth Gilbert (Ed.): 35th International Symposium on Distributed Computing (DISC 2021), volume 209 of Leibniz International Proceedings in Informatics (LIPIcs), pages 58:1–58:4, Schloss Dagstuhl–Leibniz-Zentrum für Informatik, 2021

ISBN 978-3-95977-210-5

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