129 citations · 692 across the 54 of their papers we have counts for
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Cherednik algebras, W algebras and the equivariant cohomology of the moduli space of instantons on A^2
Olivier Schiffmann, Eric Vasserot
We construct a representation of the affine W-algebra of gl_r on the equivariant homology space of the moduli space of U_r-instantons on A^2, and identify the corresponding module.…
The Hall algebra of a curve
Mikhail Kapranov, Olivier Schiffmann, Eric Vasserot
Let X be a smooth projective curve over a finite field. We describe H, the full Hall algebra of vector bundles X as a Feigin-Odesskii shuffle algebra. This shuffle algebra correspo…
The spherical Hall algebra of Spec(Z)
Mikhail Kapranov, Olivier Schiffmann, Eric Vasserot
We study an arithmetic analog of the Hall algebra of a curve, when the curve is replaced by the spectrum of the integers compactified at infinity. The role of vector bundles is pla…