Deformation rings of group representations

Deformation rings of group representations

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Bart de Smit, Universiteit Leiden
Fine Hall 214

The motivating open question for this talk is to find for a given prime $p$ all local $Z_p$-algebras which can occur as the deformation ring of some linear representation over $F_p$ of some finite group $G$. We will show for every $p$ that not all of them are complete intersections. This is joint work with Ted Chinburg and Frauke Bleher.