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math.RA2008
Maximal Crossed Product Orders over Discrete Valuation Rings
Yuval Ginosar
The problem of determining when a (classical) crossed product of a finite group over a discrete valuation ring is a maximal order, was answered in the 1960's for…
math.RA2007
A separable deformation of the quaternion group algebra
Nurit Barnea, Yuval Ginosar
The Donald-Flanigan conjecture asserts that for any finite group and for any field, the corresponding group algebra can be deformed to a separable algebra. The minimal unsolved ins…