From Wigner--Inönü Group Contraction to Contractions of Algebraic Structures

2002/10/31 by N. A. Gromov
Physics and Astronomy · #hep-th

paper · pdf

published as Acta Phys.Hung. A19 (2004) 209-212 · 5 pages, Latex. Talk given at Wigner Centennial Conference July 8-12, 2002, P{é}cs, Hungary

arxiv created 2002/10/31 · arxiv updated 2009/11/30

Abstract

The development of the notion of group contraction first introduced by E. Inönü and E.P. Wigner in 1953 is briefly reviewed. The fundamental role of the idea of degenerate transformations is stressed. The significance of contractions of algebraic structures for exactly solvable problems of mathematical physics is noticed.

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