In this this paper all binary codes of length 552 which admit the sporadic simple group Co3 as an imprimitive transitive permutation group are determined. Our aim is to understand the results also by using theoretical arguments and to discuss the combinatorial properties of the codes as well as their relation to some special properties of the Leech lattice group Co3. For all codes (with two exceptions) we obtain the weight enumerators and in many interesting cases the classification of codewords under the action of the group of code automorphisms Co3. The exceptional codes are both self-dual and have minimum weight 12.
Ward, Michelle Eluize(University of Pretoria, 2010)
The aim of this study was to explore, from a group dynamics perspective, the adult learners' experiences in a learnership program structured to include employed and unemployed learners. A secondary aim was to develop ...
Winter, Carla Marika(University of Pretoria, 2005-02-10)
The single parent family in an inner city context is confronted with a problematic life situation. The demands, which are brought about by single parenthood as well as residence in an inner city environment, often lead to ...
Dekker, Natasha(University of Pretoria, 2009-03-12)
The research dealt with the influence that gestalt group therapy may have on the emotional development of deprived toddlers. The research consisted of a literature study and an empirical study. The literature study contains ...
