3 papers
A spine for the decorated Teichmüller space of a punctured non-orientable surface
Nestor Colin, Rita Jiménez Rolland, Porfirio L. León Álvarez +1
Building on work of Harer \cite{Ha86}, we construct a spine for the decorated Teichmüller space of a non-orientable surface with at least one puncture and negative Euler characteri…
The proper geometric dimension of the mapping class group of an orientable surface with punctures
Nestor Colin, Rita Jiménez Rolland, Porfirio L. León Álvarez +1
We show that the {\it full} mapping class group of any orientable closed surface with punctures admits a cocompact classifying space for proper actions of dimension equal to its vi…
Relative group (co)homology theories with coefficients and the comparison homomorphism
José Antonio Arciniega-Nevárez, José Luis Cisneros-Molina, Luis Jorge Sánchez Saldaña
Let be a group, let be a subgroup of and let $\Or(G)$ be the orbit category. In this paper we extend the definition of the relative group (co)homology theories of the p…