Do you know of any textbooks/lecture notes that treat marginal and or relevant deformations of CFT's / WZW-models?
1 Answer
$\begingroup$
$\endgroup$
For deformations of boundary CFT and boundary WZW models, see Chapter 5 of the book "Boundary Conformal Field Theory and the Worldsheet Approach to D-Branes", by Recknagel and Schomerus.