Decomposition theorem for good moduli morphisms
Abstract
In this short note, we will explain that the good moduli space morphisms behave as if they are proper when we consider sheaf operations, though they are not separated. For example, the decomposition theorem and the base change theorem hold for these morphisms, which have applications to the cohomological study of moduli spaces.
Fields of Study & Subjects
Computability
Logic
AI Algorithms
Rings
Modules
and Algebras
semigroups and automata theory
Publication details
- Journal / source
- Mathematical Research Letters
- Publisher
- International Press of Boston
- Volume
- 33
- Issue
- 1
- Pages
- 199–211
- Publication date
- 1 January 2026
- Language
- EN