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rdf:type
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Description
| - Let K be a class of finite graphs and F1,...,Fm be a set of finite graphs. Then, K is said to have finite-duality if there exists a graph U in K such that for any graph G in K, G is homomorphic to U if and only if Fi is not homomorphic to G, for all i=1,2,,m. In this note, we answer this positively a problem of the first author by showing minor closed subclasses containing arbitrary long anti-chains and yet having the finite-duality property.
- Let K be a class of finite graphs and F1,...,Fm be a set of finite graphs. Then, K is said to have finite-duality if there exists a graph U in K such that for any graph G in K, G is homomorphic to U if and only if Fi is not homomorphic to G, for all i=1,2,,m. In this note, we answer this positively a problem of the first author by showing minor closed subclasses containing arbitrary long anti-chains and yet having the finite-duality property. (en)
- Nechť K je třída konečných grafů a F1,..., Fm je množina konečných grafů. Potom řekneme, že K má konečnou dualitu, pokud existuje graf U takový, že pro každý graf G z K, G je homomorfní s U, právě když Fi není homomorfní s G, pro všechna i=1,...,m. V tomto článku pozitivně vyřešíme problém prvního autora, když zkonstruujeme minorově uzavřené třídy obsahující libovolně dlouhé antiřetězce a mající konečnou dualitu. (cs)
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Title
| - Finite duality for some minor closed classes
- Finite duality for some minor closed classes (en)
- Konečná dualita pro některé minorově uzavřené třídy (cs)
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skos:prefLabel
| - Finite duality for some minor closed classes
- Finite duality for some minor closed classes (en)
- Konečná dualita pro některé minorově uzavřené třídy (cs)
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skos:notation
| - RIV/00216208:11320/07:00005050!RIV08-MSM-11320___
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http://linked.open.../vavai/riv/strany
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
| - P(1M0545), Z(MSM0021620838)
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http://linked.open...iv/cisloPeriodika
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http://linked.open...vai/riv/dodaniDat
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http://linked.open...aciTvurceVysledku
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http://linked.open.../riv/druhVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/00216208:11320/07:00005050
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - Finite; duality; minor; closed; classes (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...odStatuVydavatele
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http://linked.open...ontrolniKodProRIV
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http://linked.open...i/riv/nazevZdroje
| - Electronic Notes in Discrete Mathematics
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...vavai/riv/projekt
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http://linked.open...UplatneniVysledku
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http://linked.open...v/svazekPeriodika
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http://linked.open...iv/tvurceVysledku
| - Nešetřil, Jaroslav
- Nigoussie, Yared
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http://linked.open...n/vavai/riv/zamer
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issn
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number of pages
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http://localhost/t...ganizacniJednotka
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