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arxiv: 1411.6501 · v2 · pith:QV4EWHX7new · submitted 2014-11-24 · 🧮 math.RA

On quadri-algebras

classification 🧮 math.RA
keywords quaddualquadri-algebrasaguiaralgebrasapplicationsconjecturedescribe
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WWe describe the Koszul dual of the operad Quad of quadri-algebras, show the koszularity of Quad and give the formal series of Quad and its dual, which proves a conjecture due to Aguiar and Loday. A notion of quadri-bialgebra is also introduced, with applications to the Hopf algebras FQSym and WQSym.

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