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  • In this paper we deal with cover?incomparability graphs of posets, or briefly C?I graphs. These are graphs derived from posets as the edge-union of their cover graph and their incomparability graph. We answer two recently posed open questions. Which distance-hereditary graphs are C?I graphs? Which Ptolemaic (i.e. chordal distance-hereditary) graphs are C?I graphs? It follows that C?I graphs can be recognized efficiently in the class of all distance-hereditary graph whereas recognizing C?I graphs in general is known to be NP-complete
  • In this paper we deal with cover?incomparability graphs of posets, or briefly C?I graphs. These are graphs derived from posets as the edge-union of their cover graph and their incomparability graph. We answer two recently posed open questions. Which distance-hereditary graphs are C?I graphs? Which Ptolemaic (i.e. chordal distance-hereditary) graphs are C?I graphs? It follows that C?I graphs can be recognized efficiently in the class of all distance-hereditary graph whereas recognizing C?I graphs in general is known to be NP-complete (en)
Title
  • Which distance-hereditary graphs are cover?incomparability graphs?
  • Which distance-hereditary graphs are cover?incomparability graphs? (en)
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  • Which distance-hereditary graphs are cover?incomparability graphs?
  • Which distance-hereditary graphs are cover?incomparability graphs? (en)
skos:notation
  • RIV/60461373:22340/13:43895366!RIV14-MSM-22340___
http://linked.open...avai/predkladatel
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  • V
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  • Issues 13-14
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  • 117324
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  • RIV/60461373:22340/13:43895366
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • Poset, Graph, Distance-hereditary graphs, Ptolemaic graphs (en)
http://linked.open.../riv/klicoveSlovo
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  • NL - Nizozemsko
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  • [BB91D0E9016A]
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  • Vol.161
http://linked.open...iv/tvurceVysledku
  • Maxová, Jana
  • Turzík, Daniel
http://linked.open...ain/vavai/riv/wos
  • 000320680400030
issn
  • 0166-218X
number of pages
http://bibframe.org/vocab/doi
  • 10.1016/j.dam.2013.01.017
http://localhost/t...ganizacniJednotka
  • 22340
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