Simplified lower bounds on the multiparty communication complexity of disjointness

Anup Rao, Amir Yehudayoff

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We show that the deterministic number-on-forehead communication complexity of set disjointness for k parties on a universe of size n is Ω(n/4k). This gives the first lower bound that is linear in n, nearly matching Grolmusz's upper bound of O(log2(n) + k2n/2k). We also simplify the proof of Sherstov's Ω(√n/(k2k)) lower bound for the randomized communication complexity of set disjointness.

Original languageEnglish
Title of host publication30th Conference on Computational Complexity, CCC 2015
EditorsDavid Zuckerman
Pages88-101
Number of pages14
ISBN (Electronic)9783939897811
DOIs
StatePublished - 1 Jun 2015
Event30th Conference on Computational Complexity, CCC 2015 - Portland, United States
Duration: 17 Jun 201519 Jun 2015

Publication series

NameLeibniz International Proceedings in Informatics, LIPIcs
Volume33

Conference

Conference30th Conference on Computational Complexity, CCC 2015
Country/TerritoryUnited States
CityPortland
Period17/06/1519/06/15

Keywords

  • Communication complexity
  • Lower bounds
  • Number-on-forehead model
  • Set disjointness

All Science Journal Classification (ASJC) codes

  • Software

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