Wy. Ruan et Cg. Bao, TRANSFORMATION BRACKET FOR 2D HYPERSPHERICAL HARMONICS AND ITS APPLICATIONS TO FEW-ANYON PROBLEMS, Journal of mathematical physics, 38(11), 1997, pp. 5634-5642
The transformation bracket of hyperspherical harmonics with different
sets of hyperspherical coordinates as arguments has been derived for a
n arbitrary number of particles with arbitrary masses in two space dim
ensions. The solution of the four-anyon problem is given as an example
to illustrate its applications. (C) 1997 American Institute of Physic
s.