Central invariants ofH-module algebras
作者:
Miriam Cohen,
Sara Westreich,
期刊:
Communications in Algebra
(Taylor Available online 1993)
卷期:
Volume 21,
issue 8
页码: 2859-2883
ISSN:0092-7872
年代: 1993
DOI:10.1080/00927879308824709
出版商: Gordon and Breach Science Publishers Ltd.
数据来源: Taylor
摘要:
LetHbe a Hopf algebra over a fieldk:, andAanH-module algebra, with subalgebra ofH-invariants denoted byAH. When (H, R) is quasitriangular andAis quantum commutative with respect to (H,R), (e.g. quantum planes, graded commutative superalgebras), thenAH⊂ center ofA=Z(A). In this paper we are mainly concerned with actions ofHfor whichAH⊂Z(A). We show that under this hypothesis there exists strong relations between the ideal structures ofAHAandA#H.
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