2004/07/28 by C. Gonera, Gonera, C., P. Kosinski +5
Physics and Astronomy · #Exactly Solvable and Integrable Systems (nlin.SI) #FOS: Physical sciences #nlin.SI
paper · pdf · doi:10.48550/arxiv.nlin/0407063
8 pages, no figures, a number of examples and references added
arxiv created 2004/08/31 · arxiv updated 2009/12/01
It is shown that the symmetry algebra of quantum superintegrable system can be always chosen to be u(N),N being the number of degrees of freedom.