76 citations · 284 across the 25 of their papers we have counts for
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math.AG2014★ 31 cited
On the structure of instability in moduli theory
Daniel Halpern-Leistner
We formulate a theory of instability and Harder-Narasimhan filtrations for an arbitrary moduli problem in algebraic geometry. We introduce the notion of a -stratification of a m…
math.AG2014★ 5 cited
Mapping stacks and categorical notions of properness
Daniel Halpern-Leistner, Anatoly Preygel
One fundamental consequence of a scheme being proper is that the functor classifying maps from to any other suitably nice scheme or algebraic stack is representable by an a…