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The primitive derivation and freeness of multi-Coxeter arrangements

Masahiko Yoshinaga
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Abstract

We will prove the freeness of multi-Coxeter arrangements by constructing a basis of the module of vector fields which contact to each reflecting hyperplanes with some multiplicities using K. Saito's theory of primitive derivation.

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Masahiko Yoshinaga. 2002-06-20. The primitive derivation and freeness of multi-Coxeter arrangements. https://arxiv.org/abs/math/0206216

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