Graphs, hypergraphs, and properads

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18 Citations (Scopus)


© 2016, Universitat de Barcelona. A categorical formalism for directed graphs is introduced, featuring natural notions of morphisms and subgraphs, and leading to two elementary descriptions of the free-properad monad, first in terms of presheaves on elementary graphs, second in terms of groupoid-enriched hypergraphs.
Original languageEnglish
Pages (from-to)155-190
JournalCollectanea Mathematica
Issue number2
Publication statusPublished - 1 May 2016


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