Canonical systems of basic invariants for unitary reflection groups

30 Oct 2017  ·  Nakashima Norihiro, Terao Hiroaki, Tsujie Shuhei ·

It has been known that there exists a canonical system for every finite real reflection group. The first and the third authors obtained an explicit formula for a canonical system in the previous paper... In this article, we first define canonical systems for the finite unitary reflection groups, and then prove their existence. Our proof does not depend on the classification of unitary reflection groups. Furthermore, we give an explicit formula for a canonical system for every unitary reflection group. read more

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Commutative Algebra Representation Theory