On the Invariants of the Cohomology of Complements of Coxeter Arrangements
MFO Scientific ProgramResearch in Pairs 2018
Douglass, J. Matthew
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We refine Brieskorn's study of the cohomology of the complement of the reflection arrangement of a finite Coxeter group W. As a result we complete the verification of a conjecture by Felder and Veselov that gives an explicit basis of the space of W-invariants in this cohomology ring.