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math.AG2025
Finding the walls for quiver moduli
Hans Franzen, Gianni Petrella, Rachel Webb
We give an effective characterisation of the walls in the variation of geometric invariant theory problem associated to a quiver and a dimension vector.
math.AG2019
Quasimaps and some examples of stacks for everybody
Rachel Webb
This note introduces the theory of quasimaps to GIT quotients with intuition and concrete examples, with the goal of explaining a closed formula for the quasimap -function. Alon…