2 papers
math.AG2014
Maximal orders in unramified central simple algebras
Benjamin Antieau, Kenneth Chan
Using depth of coherent sheaves on noetherian algebraic stacks, we construct non-Azumaya maximal orders in unramified central simple algebras over schemes of dimension at least …
math.AG2012
Serre-Godeaux varieties and the etale index
Benjamin Antieau, Ben Williams
We use the Serre-Godeaux varieties of finite groups, projective representation theory, the twisted Atiyah-Segal completion theorem, and our previous work on the topological period-…