The \((t,q)\)-analogs of secant and tangent numbers
type: Item
instance of: scholarly article
title: The \((t,q)\)-analogs of secant and tangent numbers
zbMATH Open document ID: 1233.05041
author: Guo-Niu Han
author: Dominique Foata
published in: The Electronic Journal of Combinatorics
publication date: 2011-06-01T00:00:00Z
full work available at URL: https://eudml.org/doc/224888
full work available at URL: v18i2p7.html
review text: Summary: The secant and tangent numbers are given \((t, q)\)-analogs with an explicit combinatorial interpretation. This extends, both analytically and combinatorially, the classical evaluations of the Eulerian and Roselle polynomials at \(t = - 1\).
Mathematics Subject Classification ID: 05A30
Mathematics Subject Classification ID: 33B10
zbMATH DE Number: 5903055
zbMATH Keywords: \(q\)-secant numbers
zbMATH Keywords: \(q\)-tangent numbers
zbMATH Keywords: \((t, q)\)-secant numbers
zbMATH Keywords: \((t, q)\)-tangent numbers
zbMATH Keywords: alternating permutations
zbMATH Keywords: pix
zbMATH Keywords: inverse major index
zbMATH Keywords: lec-statistic
zbMATH Keywords: inversion number
zbMATH Keywords: excedance number
MaRDI profile type: Publication
description: scientific article; zbMATH DE number 5903055