About: The crossing number of a projective graph is quadratic in the face--width

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	We show that for each integer g there is a constant Cg such that every graph that embeds in the projective plane with sufficiently large face-width r has crossing number at least Cgr^2 in the orientable surface Sg of genus g. As a corollary, we give a polynomial time constant factor approximation algorithm for the crossing number of projective graphs with bounded degree. We show that for each integer g there is a constant Cg such that every graph that embeds in the projective plane with sufficiently large face-width r has crossing number at least Cgr^2 in the orientable surface Sg of genus g. As a corollary, we give a polynomial time constant factor approximation algorithm for the crossing number of projective graphs with bounded degree. (en)
Title	The crossing number of a projective graph is quadratic in the face--width The crossing number of a projective graph is quadratic in the face--width (en)
skos:prefLabel	The crossing number of a projective graph is quadratic in the face--width The crossing number of a projective graph is quadratic in the face--width (en)
skos:notation	RIV/00216224:14330/08:00024698!RIV10-GA0-14330___
http://linked.open...avai/riv/aktivita	P S Z
http://linked.open...avai/riv/aktivity	P(GA201/08/0308), S, Z(MSM0021622419)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Hliněný, Petr
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Masarykova univerzita / Fakulta informatiky
http://linked.open...dnocenehoVysledku	361595
http://linked.open...ai/riv/idVysledku	RIV/00216224:14330/08:00024698
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	crossing number; projective plane; face-width (en)
http://linked.open.../riv/klicoveSlovo	crossing number face-width projective plane
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[56B443CBEB8C]
http://linked.open...i/riv/nazevZdroje	Electronic Journal of Combinatorics
http://linked.open...in/vavai/riv/obor	BA
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Utilization of structural and %22Width%22 parameters in combinatorics and algorithmic complexity
http://linked.open...UplatneniVysledku	2008
http://linked.open...v/svazekPeriodika	15
http://linked.open...iv/tvurceVysledku	Hliněný, Petr Salazar, Gelasio Gitler, Isidoro Leanos, Jesus
http://linked.open...ain/vavai/riv/wos	000254150200003
http://linked.open...n/vavai/riv/zamer	Highly Parallel and Distributed Computing Systems
issn	1077-8926
number of pages	8 (xsd:int)
http://localhost/t...ganizacniJednotka	14330

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