k-Double Schur functions and equivariant (co)homology of the affine Grassmannian
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functionsaffineschurgrassmannianhomologyk-doublebasescalled
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The Schubert bases of the torus-equivariant homology and cohomology rings of the affine Grassmannian of the special linear group are realized by new families of symmetric functions called k-double Schur functions and affine double Schur functions.
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