most citedHecke group algebras as quotients of affine Hecke algebras at level 0

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math.CO2008★ 8 cited

Hopf Algebras of Graphs

Jean-Christophe Novelli, Jean-Yves Thibon, Nicolas M. Thiéry

We define graded Hopf algebras with bases labeled by various types of graphs and hypergraphs, provided with natural embeddings into an algebra of polynomials in infinitely many var…

math.CO2008★ 2 cited

Algebraic invariants of graphs; a study based on computer exploration

Nicolas M. Thiéry

We consider the ring I_n of polynomial invariants over weighted graphs on n vertices. Our primary interest is the use of this ring to define and explore algebraic versions of isomo…