2 papers
math.DG2024
On the cohomology of differentiable stacks
Matias del Hoyo, Cristian Ortiz, Fernando Studzinski
Morita equivalence classes of Lie groupoids serve as models for differentiable stacks, which are higher spaces in differential geometry, generalizing manifolds and orbifolds. Repre…
math.DG2024
Morse theory on Lie groupoids
Cristian Ortiz, Fabricio Valencia
In this paper we introduce Morse Lie groupoid morphisms and study their main properties. We show that this notion is Morita invariant which gives rise to a well defined notion of M…