<?xml version="1.0" encoding="UTF-8"?><?xml-stylesheet type="text/xsl" href="static/style.xsl"?><OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"><responseDate>2026-04-13T07:12:45Z</responseDate><request verb="GetRecord" identifier="oai:www.recercat.cat:2117/445558" metadataPrefix="oai_dc">https://recercat.cat/oai/request</request><GetRecord><record><header><identifier>oai:recercat.cat:2117/445558</identifier><datestamp>2026-02-07T11:54:32Z</datestamp><setSpec>com_2072_1033</setSpec><setSpec>col_2072_452950</setSpec></header><metadata><oai_dc:dc xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:doc="http://www.lyncode.com/xoai" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
   <dc:title>On the complexity of the decisive problem in simple and weighted games</dc:title>
   <dc:creator>Riquelme Csori, Fabian Rolando</dc:creator>
   <dc:creator>Polyméris, Andreas</dc:creator>
   <dc:contributor>Universitat Politècnica de Catalunya. Departament de Ciències de la Computació</dc:contributor>
   <dc:contributor>Universitat Politècnica de Catalunya. ALBCOM - Algorísmia, Bioinformàtica, Complexitat i Mètodes Formals</dc:contributor>
   <dc:subject>Àrees temàtiques de la UPC::Informàtica::Informàtica teòrica::Algorísmica i teoria de la complexitat</dc:subject>
   <dc:subject>Simple/Weighted game</dc:subject>
   <dc:subject>Hypergraph</dc:subject>
   <dc:subject>Self-duality</dc:subject>
   <dc:subject>Quasi-polynomial</dc:subject>
   <dc:description>We study the computational complexity of an important property of simple and weighted games, which is decisiveness. We show that this concept can naturally be represented in the context of hypergraph theory, and that decisiveness can be decided for simple games in quasi-polynomial time, and for weighted games in polynomial time. The strongness condition poses the main difficulties. Instead, properness reduces the complexity of the problem. Specially if it is amplified by weightiness.</dc:description>
   <dc:description>Peer Reviewed</dc:description>
   <dc:description>Postprint (author's final draft)</dc:description>
   <dc:date>2011-08</dc:date>
   <dc:type>Article</dc:type>
   <dc:identifier>Riquelme, F.; Polyméris, A. On the complexity of the decisive problem in simple and weighted games. «Electronic notes in discrete mathematics», Agost 2011, vol. 37, p. 21-26.</dc:identifier>
   <dc:identifier>1571-0653</dc:identifier>
   <dc:identifier>https://hdl.handle.net/2117/445558</dc:identifier>
   <dc:identifier>10.1016/j.endm.2011.05.005</dc:identifier>
   <dc:language>eng</dc:language>
   <dc:relation>https://www.sciencedirect.com/science/article/pii/S1571065311000060</dc:relation>
   <dc:rights>http://creativecommons.org/licenses/by-nc-nd/4.0/</dc:rights>
   <dc:rights>Open Access</dc:rights>
   <dc:rights>Attribution-NonCommercial-NoDerivatives 4.0 International</dc:rights>
   <dc:format>6 p.</dc:format>
   <dc:format>application/pdf</dc:format>
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