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COMPARISON OF KUMMER LOGARITHMIC TOPOLOGIES WITH CLASSICAL TOPOLOGIES

Part of: (Co)homology theory

Published online by Cambridge University Press:  27 July 2021

Heer Zhao Open the ORCID record for Heer Zhao [Opens in a new window]
Heer Zhao*
Affiliation:
Fakultät für Mathematik, Universität Duisburg-Essen, Thea-Leymann-Straße, 45117 Essen, Germany
*
[email protected]
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Abstract

We compare the Kummer flat (resp., Kummer étale) cohomology with the flat (resp., étale) cohomology with coefficients in smooth commutative group schemes, finite flat group schemes, and Kato’s logarithmic multiplicative group. We are particularly interested in the case of algebraic tori in the Kummer flat topology. We also make some computations for certain special cases of the base log scheme.

Keywords

log schemesKummer flat topologyKummer étale topologycomparison of cohomology

MSC classification

Primary: 14F20: Étale and other Grothendieck topologies and (co)homologies
Type
Research Article
Information
Journal of the Institute of Mathematics of Jussieu , Volume 22 , Issue 3 , May 2023 , pp. 1087 - 1117
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Copyright
© The Author(s), 2021. Published by Cambridge University Press

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