A local property of basic Morita equivalences

A local property of basic Morita equivalences
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基本 Morita 等价物的本地属性

DOI:
10.1007/s00209-006-0084-1
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发表时间:
2007-04
影响因子:
0.8
通讯作者:
--
中科院分区:
数学2区
文献类型:
--
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文[5]中引入了有限群G和G的两个Brauer k-块之间的基本Morita等价;在这种情况下,证明了相应的亏群P和P是同构的,并且如果Q和Q是P和P的相应子群,它们通过这样的同构相互对应,CG(Q)和CG(Q)的合适的Brauer对应块也是基本Morita等价的。文[8]中的最后一个结果推广到了正规化子为幂零的情况。我们在这里的主要目的是去除幂零条件并给出[5,7.7]的推广。4];这个结果是从考虑一个扩展的布劳尔商(见3.2)得出的。
The basic Morita equivalences between two Brauer k-blocks of finite groups G and G have been introduced in [5, Sect. 7]; in this situation, it is proved that the corresponding defect groups P and P are isomorphic and that, if Q and Q are respective subgroups of P and P which correspond to each other through such an isomorphism, the suitable Brauer correspondant blocks of CG (Q) and CG (Q) are basic Morita equivalent too. In [8], the last result has been extended to the blocks of the normalizers in the case they are nilpotent. Our main purpose here is to remove the nilpotent condition and give a generalization of [5, 7.7. 4]; this result follows from the consideration of an extended Brauer quotient (see 3.2).
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