D. Gonccalves

activity

20242026

collaborators

3 papers

math.AT2026

Fixed point free homeomorphisms and the $R_{\infty}$ -property

Daciberg GonÃ§alves, Peter Wong

Let $f : M \to M$ be a diffeomorphism on a compact connected smooth manifold of dimension at least $5$ . It is known that the Nielsen number $N (f)$ of $f$ vanishes if and only if $f$ i…

math.GT2025

The Splitting of Generalisations of the Fadell-Neuwirth short exact sequence

Daciberg Lima GonÃ§alves, John Guaschi, Carolina de Miranda e Pereiro

We study some generalisations to mixed braid groups of the Fadell-Neuwirth short exact sequence and the possible splitting of this sequence. In certain cases, we determine conditio…

math.AT2024

Borsuk--Ulam property for graphs II: The $Z_{n}$ -action

Daciberg Lima GonÃ§alves, JesÃºs GonzÃ¡lez

For a finite group $H$ and connected topological spaces $X$ and $Y$ such that $X$ is endowed with a free left $H$ -action $I ¨ $ , we provide a geometric condition in terms of the exis…

Fixed point free homeomorphisms and the R∞​-property

The Splitting of Generalisations of the Fadell-Neuwirth short exact sequence

Borsuk--Ulam property for graphs II: The Zn​-action

Fixed point free homeomorphisms and the $R_{\infty}$ -property

Borsuk--Ulam property for graphs II: The $Z_{n}$ -action