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Local Concentration Inequalities and Tomaszewski’s Conjecture

Nathan Keller, Ohad Klein

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

Abstract

We prove Tomaszewski's conjecture (1986): Let f:{-1,1}n ? R be of the form f(x)= ?i=1n ai xi. Then Pr[|f(x)| ? Var[f]] ? 1/2. Our main novel tools are local concentration inequalities and an improved Berry-Esseen inequality for first-degree functions on the discrete cube. These tools are of independent interest, and may be useful in the study of linear threshold functions and of low degree Boolean functions.

Original languageEnglish
Title of host publicationSTOC 2021 - Proceedings of the 53rd Annual ACM SIGACT Symposium on Theory of Computing
EditorsSamir Khuller, Virginia Vassilevska Williams
Pages1656-1669
Number of pages14
ISBN (Electronic)9781450380539
DOIs
StatePublished - 15 Jun 2021
Event53rd Annual ACM SIGACT Symposium on Theory of Computing, STOC 2021 - Virtual, Online, Italy
Duration: 21 Jun 202125 Jun 2021

Publication series

NameProceedings of the Annual ACM Symposium on Theory of Computing

Conference

Conference53rd Annual ACM SIGACT Symposium on Theory of Computing, STOC 2021
Country/TerritoryItaly
CityVirtual, Online
Period21/06/2125/06/21

Keywords

  • Combinatorics
  • Probabilistic Inequalities
  • Tail Inequalities

All Science Journal Classification (ASJC) codes

  • Software

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