Formulas are exponentially stronger than monotone circuits in non-commutative setting

Pavel Hrube, Amir Yehudayoff

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

Abstract

We give an example of a non-commutative mono-tone polynomial f which can be computed by a polynomial-size non-commutative formula, but every monotone non-commutative circuit computing f must have an exponential size. In the non-commutative setting this gives, a fortiori, an exponential separation between monotone and general formulas, monotone and general branching programs, and monotone and general circuits. This answers some questions raised by Nisan.

Original languageEnglish
Title of host publicationProceedings - 2013 IEEE Conference on Computational Complexity, CCC 2013
Pages10-14
Number of pages5
DOIs
StatePublished - 2013
Event2013 IEEE Conference on Computational Complexity, CCC 2013 - Palo Alto, CA, United States
Duration: 5 Jun 20137 Jun 2013

Publication series

NameProceedings of the Annual IEEE Conference on Computational Complexity

Conference

Conference2013 IEEE Conference on Computational Complexity, CCC 2013
Country/TerritoryUnited States
CityPalo Alto, CA
Period5/06/137/06/13

Keywords

  • algebraic complexity
  • disjointness
  • monotone computation

All Science Journal Classification (ASJC) codes

  • Software
  • Theoretical Computer Science
  • Computational Mathematics

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