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math.AG2023
A criterion for smooth weighted blow-downs
Veronica Arena, Andrea Di Lorenzo, Giovanni Inchiostro +3
We establish a criterion for determining when a smooth Deligne-Mumford stack is a weighted blow-up. More precisely, given a smooth Deligne-Mumford stack and a Cartier…
math.AG2023
Formal GAGA for gerbes
Andrew Kresch, Siddharth Mathur
Fix an -adically complete Noetherian ring and suppose is a proper -scheme. This article concerns the relationship between the Brauer group of and that of the vari…