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Expander Construction in VNC1

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F17%3A10368745" target="_blank" >RIV/00216208:11320/17:10368745 - isvavai.cz</a>

  • Result on the web

    <a href="http://dx.doi.org/10.4230/LIPIcs.ITCS.2017.31" target="_blank" >http://dx.doi.org/10.4230/LIPIcs.ITCS.2017.31</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.4230/LIPIcs.ITCS.2017.31" target="_blank" >10.4230/LIPIcs.ITCS.2017.31</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Expander Construction in VNC1

  • Original language description

    We give a combinatorial analysis (using edge expansion) of a variant of the iterative expander construction due to Reingold, Vadhan, and Wigderson (2002), and show that this analysis can be formalized in the bounded arithmetic system VNC^1 (corresponding to the &quot;NC^1 reasoning&quot;). As a corollary, we prove the assumption made by Jerabek (2011) that a construction of certain bipartite expander graphs can be formalized in VNC^1. This in turn implies that every proof in Gentzen&apos;s sequent calculus LK of a monotone sequent can be simulated in the monotone version of LK (MLK) with only polynomial blowup in proof size, strengthening the quasipolynomial simulation result of Atserias, Galesi, and Pudlak (2002).

  • Czech name

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

  • OECD FORD branch

    10201 - Computer sciences, information science, bioinformathics (hardware development to be 2.2, social aspect to be 5.8)

Result continuities

  • Project

  • Continuities

    R - Projekt Ramcoveho programu EK

Others

  • Publication year

    2017

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Article name in the collection

    8th Innovations in Theoretical Computer Science Conference (ITCS 2017)

  • ISBN

    978-3-95977-029-3

  • ISSN

    1868-8969

  • e-ISSN

    neuvedeno

  • Number of pages

    26

  • Pages from-to

    1-26

  • Publisher name

    Schloss Dagstuhl--Leibniz-Zentrum fuer Informatik

  • Place of publication

    Dagstuhl, Germany

  • Event location

    Berkeley, CA, USA

  • Event date

    Jan 9, 2018

  • Type of event by nationality

    WRD - Celosvětová akce

  • UT code for WoS article