The Picard Group of a Reductive Group over a Number Field
Abstract
We give a description of the Picard group of a reductive group over a number field as an abelianized Galois cohomology group. It gives another approach of a result due to Labesse.
- Publication:
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arXiv e-prints
- Pub Date:
- December 2023
- DOI:
- arXiv:
- arXiv:2312.06361
- Bibcode:
- 2023arXiv231206361C
- Keywords:
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- Mathematics - Number Theory;
- 11E72