Marginal Deformations of N=4 SYM and of its Supersymmetric Orbifold   Descendants
  In this thesis exactly marginal deformations of field theories living on D3-branes at low energies are studied. These theories include   N=4 supersymmetric Yang-Mills theory and theories obtained from it via the orbifolding procedure. 
Shlomo S. Razamat