Algebraic monoids and group embeddings

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We study the geometry of algebraic monoids. We prove that the group of invertible elements of an irreducible algebraic monoid is an algebraic group, open in the monoid. Moreover, if this group is reductive, then the monoid is affine. We then give a combinatorial classification of reductive monoids by means of the theory of spherical varieties.
latex2e, uses epsfig; 21 pages, 1 figure

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Algebraic Geometry

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http://salesiana.dossiersoluciones.com/handle/123456789/76613

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/9802073
 http://arxiv.org/abs/math/9802073

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arXiv