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Poincaré duality for Ext-groups between strict polynomial functors


Author: Marcin Chałupnik
Journal: Proc. Amer. Math. Soc. 144 (2016), 963-970
MSC (2010): Primary 18A25, 18A40, 18G15, 20G15
DOI: https://doi.org/10.1090/proc12782
Published electronically: July 1, 2015
MathSciNet review: 3447650
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Abstract: We study the relation between left and right adjoint functors to the precomposition functor. As a consequence, we obtain various dualities for the Ext-groups in the category of strict polynomial functors.


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Additional Information

Marcin Chałupnik
Affiliation: Institute of Mathematics, University of Warsaw, ul. Banacha 2, 02–097 Warsaw, Poland
Email: mchal@mimuw.edu.pl

DOI: https://doi.org/10.1090/proc12782
Keywords: Strict polynomial functor, Poincar\'e duality, Ext--group
Received by editor(s): November 13, 2014
Received by editor(s) in revised form: March 3, 2015
Published electronically: July 1, 2015
Additional Notes: The author was supported by the grant (NCN) 2011/01/B/ST1/06184
Communicated by: Pham Huu Tiep
Article copyright: © Copyright 2015 American Mathematical Society

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