2 papers
math.GT2024
Obstruction theory for the -index of -manifolds
Chahrazade Matmat, Christian Blanchet
We develop a complete obstruction theory for the -index of a compact connected 4-dimensional manifold with free involution. This -index, equal to the mi…
math.AT2020
The Borsuk-Ulam theorem for 3-manifolds
Chahrazade Matmat, Christian Blanchet
We study the Borsuk-Ulam theorem for triple (M;τ; \R^n), where M is a compact, connected, 3-manifold equipped with a fixed-point-free involution τ. The largest value of n for which…