3 papers
math.GR2018
The group generated by Riordan involutions
Ana Luzon, Manuel A. MorÓn, L. Felipe Prieto-Martinez
We prove that any element in the group generated by the Riordan involutions is the product of at most four of them. We also give a description of this subgroup as a semidirect prod…
math.CO2009
Self-inverse Sheffer sequences and Riordan involutions
Ana Luzon, Manuel A. Moron
In this short note we focus on self-inverse Sheffer sequences and involutions in the Riordan group. We translate the results of Brown and Kuczma on self-inverse sequences of Sheffe…
math.CO2009
Recurrence relations for polynomial sequences via Riordan matrices
A. Luzon, M. A. Morón
We give recurrence relations for any family of generalized Appell polynomials unifying so some known recurrences of many classical sequences of polynomials. Our main tool to get ou…