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On the Commuting variety of a reductive Lie algebra

Representation Theory 2014-12-31 v3 Algebraic Geometry

Abstract

The commuting variety of a reductive Lie algebra \gothg{\goth g} is the underlying variety of a well defined subscheme of g\gg g{}. In this note, it is proved that this scheme is normal. In particular, its ideal of definition is a prime ideal.

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Cite

@article{arxiv.1206.5592,
  title  = {On the Commuting variety of a reductive Lie algebra},
  author = {Jean-Yves Charbonnel},
  journal= {arXiv preprint arXiv:1206.5592},
  year   = {2014}
}

Comments

A proof is completed