107 citations · 334 across the 22 of their papers we have counts for
Showing 2012Show all
2 papers · 1 filter
math.AG2012★ 3 cited
Openness of versality via coherent functors
Jack Hall
We give a proof of openness of versality using coherent functors. As an application, we streamline Artin's criterion for algebraicity of a stack. We also introduce multi-step obstr…
math.AG2012★ 3 cited
Cohomology and base change for algebraic stacks
Jack Hall
We prove that cohomology and base change holds for algebraic stacks, generalizing work of Brochard in the tame case. We also show that Hom-spaces on algebraic stacks are represente…