Combinatorial Hopf Algebras of Simplicial Complexes

Autor: Carolina Benedetti, Joshua Hallam, John Machacek
Jazyk: angličtina
Rok vydání: 2015
Předmět:
Zdroj: Discrete Mathematics & Theoretical Computer Science, Vol DMTCS Proceedings, 27th..., Iss Proceedings (2015)
Druh dokumentu: article
ISSN: 1365-8050
DOI: 10.46298/dmtcs.2506
Popis: We consider a Hopf algebra of simplicial complexes and provide a cancellation-free formula for its antipode. We then obtain a family of combinatorial Hopf algebras by defining a family of characters on this Hopf algebra. The characters of these Hopf algebras give rise to symmetric functions that encode information about colorings of simplicial complexes and their $f$-vectors. We also use characters to give a generalization of Stanley’s $(-1)$-color theorem.
Databáze: Directory of Open Access Journals