منابع مشابه
Twisted automorphisms of group algebras
We continue the study of twisted automorphisms of Hopf algebras started in [4]. In this paper we concentrate on the group algebra case. We describe the group of twisted automorphisms of the group algebra of a group of order coprime to 6. The description turns out to be very similar to the one for the universal enveloping algebra given in [4].
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Let A be a left and right noetherian ring We denote by Amod the abelian category of nitely generated left A modules and by Aproj the category of nitely generated projective left A modules We de note by R A the Grothendieck group of Amod and by R A the Grothendieck group of Aproj If X is an object of Amod resp of Aproj we denote by X its representative in R A resp in R A We denote by modA the ab...
متن کاملthe structure of lie derivations on c*-algebras
نشان می دهیم که هر اشتقاق لی روی یک c^*-جبر به شکل استاندارد است، یعنی می تواند به طور یکتا به مجموع یک اشتقاق لی و یک اثر مرکز مقدار تجزیه شود. کلمات کلیدی: اشتقاق، اشتقاق لی، c^*-جبر.
15 صفحه اولOn the Representation Dimension of Skew Group Algebras, Wreath Products and Blocks of Hecke Algebras
We establish bounds for the representation dimension of skew group algebras and wreath products. Using this, we obtain bounds for the representation dimension of a block of a Hecke algebra of type A, in terms of the weight of the block. This includes certain blocks of group algebras of symmetric groups.
متن کاملTwisted Lie group C-algebras as strict quantizations
A nonzero 2-cocycle Γ ∈ Z(g,R) on the Lie algebra g of a compact Lie group G defines a twisted version of the Lie-Poisson structure on the dual Lie algebra g∗, leading to a Poisson algebra C∞(g∗(Γ)). Similarly, a multiplier c ∈ Z (G, U(1)) on G which is smooth near the identity defines a twist in the convolution product on G, encoded by the twisted group C∗algebra C∗(G, c). Further to some supe...
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ژورنال
عنوان ژورنال: Hokkaido Mathematical Journal
سال: 1985
ISSN: 0385-4035
DOI: 10.14492/hokmj/1381757659