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Symmetry in Nonlinear Mathematical Physics - 2009
Rutwig Campoamor-Stursberg (Instituto de Matemática Interdisciplinar,
Universidad Complutense de Madrid, Spain)
Internal labelling problem, Poisson structures and Racah operators
Abstract:
Criteria on the commutativity of polynomials in enveloping
algebras of Lie algebras in terms of an involution conditions with
respect to Berezin brackets are analyzed. As application, it is
shown that the commutativity requirement of missing label and Racah
operators in the internal labelling problem can be solved
analytically.
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