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Jean-Christophe Aval

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Preprint Sep 2026

The combinatorial Hopf algebra of signed graphs

The theory of combinatorial Hopf algebras is a powerful framework for studying algebraic invariants of combinatorial objects. The aim of this work is to incorporate chromatic invariants of signed graphs into this context. We define the combinatorial Hopf algebra of signed graphs. Through this definition, algebraic inva...

Jean-Christophe Aval, Raquel Melgar · 0 citations

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