Two descent statistics over \(321\)-avoiding centrosymmetric involutions

zbMath1331.05004arXiv1508.07515MaRDI QIDQ252851

Marilena Barnabei, Sergi Elizalde, Flavio Bonetti, Matteo Silimbani

Publication date: 4 March 2016

Published in: The Electronic Journal of Combinatorics (Search for Journal in Brave)

Full work available at URL: https://arxiv.org/abs/1508.07515

zbMATH Keywords

fixed pointYoung diagraminvolutionhyperoctahedral groupdescentlattice pathmajor indexpattern avoidancecentrosymmetricexcedancenonestingsymmetric matching

Mathematics Subject Classification ID

Exact enumeration problems, generating functions (05A15) Factorials, binomial coefficients, combinatorial functions (05A10) Combinatorial identities, bijective combinatorics (05A19) (q)-calculus and related topics (05A30) Combinatorial aspects of partitions of integers (05A17) Permutations, words, matrices (05A05) Combinatorial aspects of representation theory (05E10)

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Families of major index distributions: closed forms and unimodality

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