| 代数A在子代数A^H上投射的若干充分条件 |
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| 引用本文： | 祝家贵.代数A在子代数A^H上投射的若干充分条件[J].数学杂志,1999,19(3):349-353. |
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| 作者姓名： | 祝家贵 |
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| 作者单位： | 安徽六安师范专科学校!六安237012 |
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| 摘 要： | 假设Ｈ是域ｋ上的有限维Ｈｏｐｆ代数，Ａ是Ｈ－模代数，本文刻画了Ａ＾ＨＡ的投射性并给出了Ａ＾ＨＡ是投射的若干充分条件，其中Ａ＾Ｈ是Ａ的Ｈ－不变子代数。
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| 关 键 词： | smask积 投射 Hopf代数 H模代数 子代数 |
SOME SUFFICIENT CONDITIONS THAT A ALGEBRA A OVER THE SUBALGEBRA A~H IS TO BE PROJECTIVE |
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| Zhu Jiagui.SOME SUFFICIENT CONDITIONS THAT A ALGEBRA A OVER THE SUBALGEBRA A~H IS TO BE PROJECTIVE[J].Journal of Mathematics,1999,19(3):349-353. |
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| Authors: | Zhu Jiagui |
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| Abstract: | Suppose H is a finite dimensional Hopf algebra over a field k and A an H module algebra.In this paper, we characterize the projectivity of A as a left A H module and give some easier checking sufficient conditions that A H A is projective, where A H is the subalgebra of H invariants of A . |
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| Keywords: | smash product projective hereditary |
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