Alexander Varchenko

The (𝔤𝔩n,𝔤𝔩k)-duality and critical points of master functions

The Bethe eigenvectors of the Gaudin model associated with a tensor product of representations of a Lie algebra are constructed using critical points of the associated master function.

The (𝔤𝔩n,𝔤𝔩k)-duality provides a situation in which the Gaudin model associated with a tensor product of k representations of 𝔤𝔩n is isomorphic to the Gaudin model associated with a tensor product of n representations of 𝔤𝔩k. In this situation one must expect a correspondence between the critical points of the two associated master functions.

I will explain this correspondence.