PROPped-up graph cohomology

M. Markl, A. A. Voronov

Research output: Chapter in Book/Report/Conference proceedingChapter

7 Scopus citations


We consider graph complexes with a flow and compute their cohomology. More specifically, we prove that for a PROP generated by a Koszul dioperad, the corresponding graph complex gives a minimal model of the PROP. We also give another proof of the existence of a minimal model of the bialgebra PROP from [14]. These results are based on the useful notion of a 1/2 PROP introduced by Kontsevich in [9].

Original languageEnglish (US)
Title of host publicationProgress in Mathematics
PublisherSpringer Basel
Number of pages33
StatePublished - Jan 1 2009

Publication series

NameProgress in Mathematics
ISSN (Print)0743-1643
ISSN (Electronic)2296-505X


  • Cohomology
  • Graph complexes
  • Operads

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