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- W2967333586 abstract "We calculate examples of Picard groups for 2-blocks with abelian defect groups with respect to a complete discrete valuation ring. These include all blocks with abelian 2-groups of 2-rank at most three with the exception of the principal block of J1. In particular this shows directly that all such Picard groups are finite and Picent, the group of Morita auto-equivalences fixing the centre, is trivial. These are amongst the first calculations of this kind. Further we prove some general results concerning Picard groups of blocks with normal defect groups as well as some other cases." @default.
- W2967333586 created "2019-08-22" @default.
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- W2967333586 date "2020-09-01" @default.
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- W2967333586 title "Some examples of Picard groups of blocks" @default.
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- W2967333586 doi "https://doi.org/10.1016/j.jalgebra.2019.08.004" @default.
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