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math.RT2015★ 1 cited
Ghosts and Strong Ghosts in the Stable Module Category
Jon F. Carlson, Sunil K. Chebolu, Jan Minac
Suppose that is a finite group and is a field of characteristic . A ghost map is a map in the stable category of finitely generated -modules which induces the zero…
math.RT2015
The Graded Center of a Triangulated Category
Jon F. Carlson, Peter Webb
With applications in mind to the representations and cohomology of block algebras, we examine elements of the graded center of a triangulated category when the category has a Serre…