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Let H be a finite-dimensional weak Hopf algebra and A a left H-module algebra with its invariant subalgebra A~H.We prove that the smash product A#H is an A-ring with a grouplike character, and give a criterion for A#H to be Frobenius over A. Using the theory of A-rings, we mainly construct a Morita context connecting the smash product A#H and the invariant subalgebra A~H , which generalizes the corresponding results obtained by Cohen, Fischman and Montgomery. 相似文献
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In this paper we construct a new quantum group Uq(osp(1,2,f)),which can be seen as a generalization of Uq(osp(1,2)).A necessary and sufficient condition for the algebra Uq(osp(1,2,f)) to be a super Hopf algebra is obtained and the center Z(Uq(osp(1,2,f))) is given. 相似文献
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极大-极小-加系统规划的全局优化可用于通信网络、柔性制造、对策博弈等实际系统,而幂等半环上线性方程理论在极大-极小-加系统规划的全局优化的研究中起着关键的作用.对于一类幂等半环上的非齐次线性方程组,引入列满秩矩阵与控制向量概念,并分别给出解的存在性和惟一性充分必要条件以及求解方法. 相似文献
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