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Proceedings of the American Mathematical Society
Proceedings of the American Mathematical Society
ISSN 1088-6826(online) ISSN 0002-9939(print)



Becker-Gottlieb transfer for Hochschild cohomology

Author: Fei Xu
Journal: Proc. Amer. Math. Soc. 142 (2014), 2593-2608
MSC (2010): Primary 20C05; Secondary 20J99
Published electronically: April 15, 2014
MathSciNet review: 3209315
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Abstract: Let $ G$ be a finite group. Over any finite $ G$-poset $ \mathcal {P}$ we may define a transporter category $ G\propto \mathcal {P}$ as the corresponding Grothendieck construction. There exists a Becker-Gottlieb transfer from the ordinary cohomology of $ G\propto \mathcal {P}$ to that of $ G$. We shall construct it using module-theoretic methods and then extend it to a transfer from the Hochschild cohomology of $ k(G\propto \mathcal {P})$ to that of $ kG$, where $ k$ is a base field.

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Fei Xu
Affiliation: Department of Mathematics, Shantou University, Shantou, Guangdong 515063, People’s Republic of China

Received by editor(s): April 3, 2012
Received by editor(s) in revised form: August 11, 2012
Published electronically: April 15, 2014
Additional Notes: The author \begin{CJK*}UTF8 \CJKtilde\CJKfamily{gbsn}(徐 斐) \end{CJK*} was supported in part by a Beatriu de Pinós research fellowship from the government of Catalonia of Spain.
Communicated by: Pham Huu Tiep
Article copyright: © Copyright 2014 American Mathematical Society

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