activity
20192026
most citedTopological realizations of groups in Alexandroff spaces

3 citations · 7 across the 19 of their papers we have counts for

collaborators

20 papers

math.GN2026

From samples to shape: a finite approach to topological invariants

Pedro J. Chocano

Given a metric space and a compact subspace , we present a method for constructing an inverse sequence of finite topological spaces by sampling points from neighborhoods of…

math.GN2026

Semiflows deforming automorphisms groups

Pedro J. Chocano

In this short note, we prove that, for any pair of finite groups and , there exist a finite -space and a semiflow such that $\oper…

math.GR2026

On the existence and properties of Alexandroff paratopological groups

Pedro J. Chocano, Tayomara Borsich

We study groups endowed with Alexandroff topologies and show that no non-discrete Alexandroff topology can turn a group into a topological group. This settles negatively the basic…

math.GN2026

On continuous homomorphisms from Alexandroff paratopological groups into topological groups

Tayomara Borsich, Pedro J. Chocano

Alexandroff paratopological groups provide a natural setting in which order-theoretic and algebraic properties interact. In this short note we prove obstruction results when consid…

math.CO2025

A formula for the Euler characteristic of a poset through the determinant of the order-complement matrix

Pedro J. Chocano, Luis Felipe Prieto-Martínez

Given a finite poset , its zeta matrix encode fundamental incidence-theoretic information about the order structure. In this paper we introduce and study the \emph{o…

math.AT2025

Every group retraction can be realized as a topological retraction

Pedro J. Chocano

Given a group retraction , we construct a finite topological space of height 1, together with a topological retraction $\overline{r}: X_r \rightarrow X…