2 citations · 2 across the 3 of their papers we have counts for
5 papers
On some topological realizations of groups and homomorphisms
Pedro J. Chocano, Manuel A. Morón, Francisco R. Ruiz del Portal
Let be a homomorphism of groups, we construct a topological space such that its group of homeomorphisms is isomorphic to , its group of homotopy classes…
Coincidence theorems for finite topological spaces
Pedro J. Chocano, Manuel A. Morón, Francisco R. Ruiz del Portal
We adapt the definition of the Vietoris map to the framework of finite topological spaces and we prove some coincidence theorems. From them, we deduce a Lefschetz fixed point theor…
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…
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…
Inverse sequences, rooted trees and their end spaces
Álvaro Martínez-Pérez, Manuel A. Morón
In this paper we prove that if we consider the standard real metric on simplicial rooted trees then the category Tower-Set of inverse sequences can be described by means of the bou…