G. Felder et Ap. Veselov, SHIFT-OPERATORS FOR THE QUANTUM CALOGERO-SUTHERLAND PROBLEMS VIA KNIZHNIK-ZAMOLODCHIKOV EQUATION, Communications in Mathematical Physics, 160(2), 1994, pp. 259-273
We give a natural interpretation of the shift operators for Calogero-S
utherland quantum problem via KZ equation using Matsuo-Cherednik mappi
ngs. The explicit formulas for the inversions of these mappings and ve
rsions of shift operators for KZ equations are also found. As an appli
cation we show that the shift operator can be described via a factoriz
ation problem for an appropriate quantum integral (discriminant) of th
e Calogero system.