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math.QA2000
On the moduli space of classical dynamical r-matrices
P. Etingof, O. Schiffmann
We define and study the moduli space of classical dynamical r-matrices associated to a Lie algebra g and a subalgebra l of g. As opposed to the previous papers q-alg/9703040 and q-…
math.QA2000
On the center of affine Hecke algebras of type A
Olivier Schiffmann
We give an explicit expression for the central elements of affine Hecke algebras of type A in the Coxeter presentation, in terms of (parabolic) affine Kazhdan-Lusztig polynomials.…