Work

Finiteness of open substacks with proper moduli spaces

Year: 2026
Type: preprint
Abstract: For an algebraic stack of finite type, we construct a finite stratification of an atlas such that every universally closed open substack pulls back to a union of strata. As a result, there are only finitely many open substacks admitting a proper adequate moduli space.
Language: English
Open Access status: green
OpenAlex ID: W7221766131
Cites: 2
Cited by:
Related to: 10