SERGEEV, A.N. and VESELOV, A.P., 2009. Deformed Macdonald-Ruijsenaars operators and super Macdonald polynomials. Communications in Mathematical Physics, 288 (2), pp. 653 - 675.
It is shown that the deformed Macdonald-Ruijsenaars operators can be
described as the restrictions on certain affine subvarieties of the usual Macdonald-
Ruijsenaars operator in infinite number of variables. The ideals of these varieties are
shown to be generated by the Macdonald polynomials related to Young diagrams with
special geometry. The super Macdonald polynomials and their shifted version are introduced;
the combinatorial formulas for them are given.