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Contractions of Lie algebras and algebraic groups
Archivum mathematicum, Tome 43 (2007) no. 5, pp. 321-332 Cet article a éte moissonné depuis la source Czech Digital Mathematics Library

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Degenerations, contractions and deformations of various algebraic structures play an important role in mathematics and physics. There are many different definitions and special cases of these notions. We try to give a general definition which unifies these notions and shows the connections among them. Here we focus on contractions of Lie algebras and algebraic groups.
Degenerations, contractions and deformations of various algebraic structures play an important role in mathematics and physics. There are many different definitions and special cases of these notions. We try to give a general definition which unifies these notions and shows the connections among them. Here we focus on contractions of Lie algebras and algebraic groups.
Classification : 14L15, 14Lxx, 17B81, 17B99, 17Bxx, 20G99, 20Gxx, 81R05
Keywords: contractions; Lie algebras; affine algebraic groups; affine group schemes 
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Burde, Dietrich. Contractions of Lie algebras and algebraic groups. Archivum mathematicum, Tome 43 (2007) no. 5, pp. 321-332. http://geodesic.mathdoc.fr/item/ARM_2007_43_5_a2/

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