The Quarterly Journal of Mathematics Advance Access published online on November 2, 2009
The Quarterly Journal of Mathematics, doi:10.1093/qmath/hap035
AFFINE HALL–LITTLEWOOD FUNCTIONS FOR A
AND SOME CONSTANT TERM IDENTITIES OF CHEREDNIK–MACDONALD–MEHTA TYPE

Department of Mathematics, Indian Institute of Science, Bangalore 560012, India
E-mail: svis{at}math.iisc.ernet.in
Received 8 June 2009;
| Abstract |
|---|
We study t-analogs of string functions for integrable highest weight representations of the affine Kac–Moody algebra A
. We obtain closed form formulas for certain t-string functions of levels 2 and 4. As corollaries, we obtain explicit identities for the corresponding affine Hall–Littlewood functions, as well as higher level generalizations of Cherednik's Macdonald and Macdonald–Mehta constant term identities.