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Transactions of the American Mathematical Society

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The Grothendieck ring of the structure group of the geometric Frobenius morphism


Author: Markus Severitt
Journal: Trans. Amer. Math. Soc. 366 (2014), 5295-5322
MSC (2010): Primary 14L15, 20G05; Secondary 19E08, 17B50, 17B45
DOI: https://doi.org/10.1090/S0002-9947-2014-06026-1
Published electronically: July 2, 2014
MathSciNet review: 3240925
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Abstract: The geometric Frobenius morphism on smooth varieties is an fppf-fiber bundle. We study representations of the structure group scheme. In particular, we describe irreducible representations and compute its Grothendieck ring of finite dimensional representations.


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Additional Information

Markus Severitt
Affiliation: Fakultät für Mathematik, Universitat Bielefeld, D-33615 Bielefeld, Germany

DOI: https://doi.org/10.1090/S0002-9947-2014-06026-1
Received by editor(s): July 25, 2012
Received by editor(s) in revised form: November 15, 2012
Published electronically: July 2, 2014
Article copyright: © Copyright 2014 American Mathematical Society
The copyright for this article reverts to public domain 28 years after publication.

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