Classification of irreducible representations of Lie algebra of vector fields on a torus

We solve a long standing problem of the classification of all simple modules with finite-dimensional weight spaces over Lie algebra of vector fields on n-dimensional torus for any n. This generalizes the classical result of O. Mathieu on simple weight modules for the Virasoro algebra (n = 1). Every such module is either of a highest weight type or is a quotient of a module of tensor fields on a torus, which was conjectured by Eswara Rao.