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THE INTERSECTION MOTIVE OF THE MODULI STACK OF SHTUKAS

Part of: Linear algebraic groups and related topics $K$-theory in geometry Special varieties

Published online by Cambridge University Press:  03 February 2020

TIMO RICHARZ  and
JAKOB SCHOLBACH Open the ORCID record for JAKOB SCHOLBACH [Opens in a new window]
TIMO RICHARZ
Affiliation:
TU Darmstadt, Germany; [email protected]
JAKOB SCHOLBACH
Affiliation:
Universität Münster, Germany; [email protected]

Abstract

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For a split reductive group $G$ over a finite field, we show that the intersection (cohomology) motive of the moduli stack of iterated $G$-shtukas with bounded modification and level structure is defined independently of the standard conjectures on motivic $t$-structures on triangulated categories of motives. This is in accordance with general expectations on the independence of $\ell$ in the Langlands correspondence for function fields.

MSC classification

Primary: 20G05: Representation theory
Secondary: 14M15: Grassmannians, Schubert varieties, flag manifolds 19E15: Algebraic cycles and motivic cohomology
Type
Algebra
Information
Forum of Mathematics, Sigma , Volume 8 , 2020 , e8
Creative Commons
Creative Common License - CCCreative Common License - BY
This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright
© The Author(s) 2020

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