T-Duality and Conformal Invariance at Two Loops
arXiv:hep-th/9912105 · doi:10.1103/PhysRevD.61.086002
Abstract
We show that the conformal invariance conditions for a general sigma-model with torsion are invariant under T-duality through two loops.
21 pages. Uses RevTex. Revised Version with extra references and typos corrected