Multiplier Extensions Other than the Mackey Extension
نویسنده
چکیده
The set of all multiplier extensions to the whole group G of a representation of a normal subgroup TV is completely described, and necessary and sufficient conditions are given for equivalence of two such extensions.
منابع مشابه
The extension algebra of some cohomological Mackey functors
Let k be a field of characteristic p. We construct a new inflation functor for cohomological Mackey functors for finite groups over k. Using this inflation functor, we give an explicit presentation of the graded algebra of self extensions of the simple functor S 1 , when p is odd and G is an elementary abelian p-group. AMS Subject Classification : 18A25, 18G10, 18G15, 20J05.
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تاریخ انتشار 2010