28 citations · 35 across the 4 of their papers we have counts for
4 papers
Combinatorics of -deformed stuffle Hopf algebras
Gérard Henry Edmond Duchamp, Vincel Hoang Ngoc Minh, Christophe Tollu +2
In order to extend the Schützenberger's factorization to general perturbations, the combinatorial aspects of the Hopf algebra of the -deformed stuffle product is developed syste…
Partition functions and graphs: A combinatorial approach
Allan I. Solomon, Pawel Blasiak, Gerard Duchamp +2
Although symmetry methods and analysis are a necessary ingredient in every physicist's toolkit, rather less use has been made of combinatorial methods. One exception is in the real…
Some useful combinatorial formulae for bosonic operators
P. Blasiak, K. A. Penson, A. I. Solomon +2
We give a general expression for the normally ordered form of a function F(w(a,a*)) where w is a function of boson annihilation and creation operators satisfying [a,a*]=1. The expe…
Algebraic Elimination of epsilon-transitions
Gerard Duchamp, Hatem Hadj Kacem, Eric Laugerotte
We present here algebraic formulas associating a k-automaton to a k-epsilon-automaton. The existence depends on the definition of the star of matrices and of elements in the semiri…