2 papers
math.AG2026
On intersection cohomology with torus action of complexity one, II
Marta Agustin Vicente, Narasimha Chary Bonala, Kevin Langlois
We show that the components, appearing in the decomposition theorem for contraction maps of torus actions of complexity one, are intersection cohomology complexes of even codimensi…
math.AG2024
Reductive quotients of klt singularities
Lukas Braun, Daniel Greb, Kevin Langlois +1
We prove that the quotient of a klt type singularity by a reductive group is of klt type. In particular, given a klt variety endowed with the action of a reductive group an…