Jack-Laurent symmetric functions for special values of parameters
Mathematical Physics
2014-12-30 v2 math.MP
Abstract
We consider the Jack--Laurent symmetric functions for special values of parameters p_0=n+k^{-1}m, where k is not rational and m and n are natural numbers. In general, the coefficients of such functions may have poles at these values of p_0. The action of the corresponding algebra of quantum Calogero-Moser integrals D(k,p_0) on the space of Laurent symmetric functions defines the decomposition into generalised eigenspaces. We construct a basis in each generalised eigenspace as certain linear combinations of the Jack--Laurent symmetric functions, which are regular at p_0=n+k^{-1}m, and describe the action of D(k,p_0) in these eigenspaces.
Keywords
Cite
@article{arxiv.1401.3802,
title = {Jack-Laurent symmetric functions for special values of parameters},
author = {A. N. Sergeev and A. P. Veselov},
journal= {arXiv preprint arXiv:1401.3802},
year = {2014}
}
Comments
Slightly revised version with a stronger version of Theorem 4.1