Representation homology, Lie algebra cohomology and the derived Harish-Chandra homomorphism

A Capelli Harish-chandra Homomorphism

For a real reductive dual pair the Capelli identities define a homomorphism C from the center of the universal enveloping algebra of the larger group to the center of the universal enveloping algebra of the smaller group. In terms of the Harish-Chandra isomorphism, this map involves a ρ-shift. We view a dual pair as a Lie supergroup and offer a construction of the homomorphism C based solely on...

Verma modules , Harish - Chandra ’ s homomorphism

The Harish-Chandra homomorphism is due to [Harish-Chandra 1951]. Attention to universal modules with highest weights is in ]Harish-Chandra 1951], [Cartier 1955], as well as [Verma 1968], [BernsteinGelfand-Gelfand 1971a], [Bernstein-Gelfand-Gelfand 1971b], [Bernstein-Gelfand-Gelfand 1975]. See also [Jantzen 1979]. [1℄ We treat sl(2) in as simple a style as possible, to highlight ideas. Then sl(3...

The Kernel of an Homomorphism of Harish-chandra

Deformed Harish-chandra Homomorphism for the Cyclic Quiver

In the case of cyclic quiver we prove that the deformed Harish-Chandra map whose existence was conjectured by Etingof and Ginzburg is well defined. As an application we prove Kirillov-type formula for the cyclotomic Bessel function.

Invariant Differential Operators and an Homomorphism of Harish-chandra