License: Creative Commons Attribution 4.0 International license (CC BY 4.0)
When quoting this document, please refer to the following
DOI: 10.4230/LIPIcs.CCC.2021.18
URN: urn:nbn:de:0030-drops-142922
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Göös, Mika ; Maystre, Gilbert

A Majority Lemma for Randomised Query Complexity

LIPIcs-CCC-2021-18.pdf (0.7 MB)


We show that computing the majority of n copies of a boolean function g has randomised query complexity R(Maj∘gⁿ) = Θ(n⋅R ̅_{1/n}(g)). In fact, we show that to obtain a similar result for any composed function f∘gⁿ, it suffices to prove a sufficiently strong form of the result only in the special case g = GapOr.

BibTeX - Entry

  author =	{G\"{o}\"{o}s, Mika and Maystre, Gilbert},
  title =	{{A Majority Lemma for Randomised Query Complexity}},
  booktitle =	{36th Computational Complexity Conference (CCC 2021)},
  pages =	{18:1--18:15},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-193-1},
  ISSN =	{1868-8969},
  year =	{2021},
  volume =	{200},
  editor =	{Kabanets, Valentine},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{},
  URN =		{urn:nbn:de:0030-drops-142922},
  doi =		{10.4230/LIPIcs.CCC.2021.18},
  annote =	{Keywords: Query Complexity, Composition, Majority}

Keywords: Query Complexity, Composition, Majority
Collection: 36th Computational Complexity Conference (CCC 2021)
Issue Date: 2021
Date of publication: 08.07.2021

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