Porfirio L. León Álvarez

collaborators

2 papers

math.GT2026

The proper geometric dimension of the mapping class groups of non-orientable surfaces with punctures

Nestor Colin, Rita Jiménez Rolland, Porfirio L. León Álvarez +1

We study the proper geometric dimension of {\it full} mapping class groups of non-orientable surfaces with punctures. Building on the computation for closed non-orientable surfaces…

math.GT2021

Classifying spaces for the family of virtually abelian subgroups of orientable $3$ -manifold groups

Porfirio L. León Álvarez, Luis Jorge Sánchez Saldaña

For a group $G$ , let $F_{n}$ be the family of all the subgroups of $G$ containing a subgroup isomorphic to $Z^{r}$ for some $r = 0, 1, 2, \dots, n$ of finite index. J…

The proper geometric dimension of the mapping class groups of non-orientable surfaces with punctures

Classifying spaces for the family of virtually abelian subgroups of orientable 3-manifold groups

Classifying spaces for the family of virtually abelian subgroups of orientable $3$ -manifold groups