Abstract
Let\(\mathcal{A}_{n - 1} \subset \mathbb{C}^{n - 1} \) be the complexified Coxeter arrangement of hyperplanes of typeA n−1. In this paper we construct anS n+1 extension of the naturalS n action on the complex cohomology ring of the complement ofA n−1. Recurrence formulas connecting characters with respect to theS n and theS n+1 action are given.
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Gaiffi, G. The actions ofS n+1 andS n on the cohomology ring of a coxeter arrangement of typeA n−1 . Manuscripta Math 91, 83–94 (1996). https://doi.org/10.1007/BF02567941
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DOI: https://doi.org/10.1007/BF02567941