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math.AG2021
Quotients by Parabolic Groups and Moduli Spaces of Unstable Objects
Victoria Hoskins, Joshua Jackson
Motivated by constructing moduli spaces of unstable objects, we use new ideas in non-reductive GIT to construct quotients by parabolic group actions. For moduli problems with semis…
math.AG2021
Moduli Spaces of Unstable Objects: Sheaves of Harder-Narasimhan Length 2
Joshua Jackson
Given a moduli problem posed using Geometric Invariant Theory, one can use Non-Reductive Geometric Invariant Theory to quotient unstable HKKN strata and construct 'moduli spaces of…