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Showing 2005 · math.COShow all
2 papers · 2 filters
math.CO2005
Zimmermann Type Cancellation in the Free Faa di Bruno Algebra
Michael Anshelevich, Edward G. Effros, Mihai Popa
The N-variable Hopf algebra introduced by Brouder, Fabretti, and Krattenaler (BFK) in the context of non-commutative Lagrange inversion can be identified with the inverse of the in…
math.CO2005★ 1 cited
Crossings and Nestings of Matchings and Partitions
William Y. C. Chen, Eva Y. P. Deng, Rosena R. X. Du +2
We present results on the enumeration of crossings and nestings for matchings and set partitions. Using a bijection between partitions and vacillating tableaux, we show that if we…