1 citations
3 papers
math.CO2016
Andre Permutation Calculus; a Twin Seidel Matrix Sequence
Dominique Foata, Guo-Niu Han
Entringer numbers occur in the André permutation combinatorial set-up under several forms. This leads to the construction of a matrix-analog refinement of the tangent (resp. secant…
math.CO2013★ 1 cited
Multivariable Tangent and Secant q-derivative Polynomials
Dominique Foata, Guo-Niu Han
The derivative polynomials introduced by Knuth and Buckholtz in their calculations of the tangent and secant numbers are extended to a multivariable --environment. The -th $q…
q-bio.QM2009
Activatability for simulation tractability of NP problems: Application to Ecology
Patrick Coquillard, Alexandre Muzy, Eric Wajnberg
Dynamics of biological-ecological systems is strongly depending on spatial dimensions. Most of powerful simulators in ecology take into account for system spatiality thus embedding…