Lubisi, Elliot2018-12-052018-12-052018Lubisi, Elliot (2018) The effect of the group structure of a group Q on its non-cancellation set, University of the Witwatersrand, Johannesburg, <http://hdl.handle.net/10539/26176>https://hdl.handle.net/10539/26176A dissertation submitted in fulfillment of the requirements for the degree of Master of Science in the school of Mathematics , University of the Witwatersrand, Johannesburg, 2018Online resource (vii, 49 leaves)enNilpotent groupsFermat's theoremLie groupsThesis