Groups Acting on Hereditary Rings
نویسندگان
چکیده
منابع مشابه
Homotopy formulas for cyclic groups acting on rings
Abstract. The positive cohomology groups of a finite group acting on a ring vanish when the ring has a norm-one element. In this note we give explicit homotopies on the level of cochains when the group is cyclic, which allows us to express any cocycle of a cyclic group as the coboundary of an explicit cochain. The formulas in this note are closely related to the effective problems considered in...
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ژورنال
عنوان ژورنال: Proceedings of the London Mathematical Society
سال: 1972
ISSN: 0024-6115
DOI: 10.1112/plms/s3-24.1.192