Twisted crossed products by coactions

Journal of the Australian Mathematical Society

John Phillips¹ 

[1] Iain Raeburn

关键词: 46 L 55;    22 D 25;    22 D 35;   

DOI  :  10.1017/S1446788700035539

学科分类：数学（综合）

来源: Cambridge University Press

【 摘 要 】

We consider coactions of a locally compact group G on a C*-algebra A, and the associated crossed product C*-algebra A× G. Given a normal subgroup N of G, we seek to decompose A× G as an iterated crossed product (A× G/ N) × N, and introduce notions of twisted coaction and twisted crossed product which make this possible. We then prove a duality theorem for these twisted crossed products, and discuss how our results might be used, especially when N is abelian.

【 授权许可】

Unknown