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Cohomology of complements of toric arrangements associated with root systems

Authors :
Olof Bergvall
Source :
Research in the Mathematical Sciences. 9
Publication Year :
2022
Publisher :
Springer Science and Business Media LLC, 2022.

Abstract

We develop an algorithm for computing the cohomology of complements of toric arrangements. In the case a finite group $$\Gamma $$ Γ is acting on the arrangement, the algorithm determines the cohomology groups as representations of $$\Gamma $$ Γ . As an important application, we determine the cohomology groups of the complements of the toric arrangements associated with root systems of exceptional type as representations of the corresponding Weyl groups.

Details

ISSN :
21979847 and 25220144
Volume :
9
Database :
OpenAIRE
Journal :
Research in the Mathematical Sciences
Accession number :
edsair.doi.dedup.....d9b0ea9b1ec7de6d1109d25f170ba034
Full Text :
https://doi.org/10.1007/s40687-021-00305-z