26 citations · 207 across the 36 of their papers we have counts for
10 papers · 1 filter
Universal deformation rings and self-injective Nakayama algebras
Frauke M. Bleher, Daniel J. Wackwitz
Let be a field and let be an indecomposable finite dimensional -algebra such that there is a stable equivalence of Morita type between and a self-injective split bas…
Universal deformation rings, endo-trivial modules, and semidihedral and generalized quaternion 2-groups
Frauke M. Bleher, Ted Chinburg, Roberto C. Soto
Let be a field of characteristic , and let be a complete discrete valuation ring of characteristic that has as its residue field. Suppose is a finite group…
Large universal deformation rings
Frauke M. Bleher
We provide a series of examples of finite groups G and mod p representations V of G whose stable endomorphisms are all given by scalars such that V has a universal deformation ring…
Brauer's generalized decomposition numbers and universal deformation rings
Frauke M. Bleher
The versal deformation ring R(G,V) of a mod p representation V of a profinite group G encodes all isomorphism classes of lifts of V to representations of G over complete local comm…
Universal deformation rings and dihedral blocks with two simple modules
Frauke M. Bleher, Giovanna Llosent, Jennifer B. Schaefer
Let k be an algebraically closed field of characteristic 2, and let W be the ring of infinite Witt vectors over k. Suppose G is a finite group and B is a block of kG with a dihedra…
Dihedral blocks with two simple modules
Frauke M. Bleher
Let be an algebraically closed field of characteristic 2, and let be a finite group. Suppose is a block of with dihedral defect groups such that there are precisel…