INTEGRABLE BCN ANALYTIC DIFFERENCE OPERATORS: HIDDEN PARAMETER SYMMETRIES AND EIGENFUNCTIONS
INTEGRABLE BCN ANALYTIC DIFFERENCE OPERATORS: HIDDEN PARAMETER SYMMETRIES AND EIGENFUNCTIONS
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DOI:
10.1007/978-94-007-1023-8_9
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发表时间:
2004
影响因子:
0.8
通讯作者:
S. Ruijsenaars
中科院分区:
文献类型:
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作者:
S. Ruijsenaars
We consider integrable N-particle quantum systems of Calogero-Moser type, focusing on the ‘relativistic’BCnsetting, where commuting analytic difference operators arise. We show that the defining operators at the hyperbolic/elliptic levels, which depend on four/eight coupling constants, can be transformed to a manifestlyD4/D8symmetric form, resp. We survey various results on special eigenfunctions (including ‘ground states’) with regard to the latter symmetries and other ones. We also sketch a symmetry scenario for the arbitrary-N eigenfunctions, motivated by the hyperbolicBC1case, where our ‘relativistic’ hypergeometric function has all of the expected properties.