Showing math.ATShow all
2 papers · 1 filter
math.AT2023
The BNS invariants of the braid groups and pure braid groups of some surfaces
Carolina de Miranda e Pereiro, Wagner Sgobbi
We compute and explicitly describe the Bieri-Neumann-Strebel invariants for the full and pure braid groups of the sphere , the real projective plane $\mathbb{R}…
math.AT2023
The Borsuk-Ulam theorem for n-valued maps between surfaces
Vinicius Casteluber Laass, Carolina de Miranda e Pereiro
In this work we analysed the validity of a type of Borsuk-Ulam theorem for multimaps between surfaces. We developed an algebraic technique involving braid groups to study this prob…