Se. Konstein, 3-PARTICLE CALOGERO MODEL - SUPERTRACES AND IDEALS ON THE OBSERVABLESALGEBRA, Theoretical and mathematical physics, 116(1), 1998, pp. 836-845
The associative observables superalgebra of the three-particle Caloger
o model giving all its wave functions via the standard Fock procedure
has two independent supertraces. When the coupling constant upsilon is
n +/- 1/3 or n + 1/2, the existence of two independent supertraces le
ads to the existence of a nontrivial two-sided ideal in the observable
s superalgebra for any integer n.