Masemola, Phetego2013-05-082013-05-082013-05-08http://hdl.handle.net/10539/12718A dissertation submitted to the Faculty of Science, University of the Witwatersrand, in fulfilment of the requirements for the degree of Master of Science. Johannesburg, 2012.Unable to load abstract.enDifferential equations, Partial.Conservation laws (Mathematics)Schrödinger equation.Symmetry.Symmetries and conservation laws of certain classes of nonlinear Schrödinger partial differential equationsThesis