Browsing University of Galway Theses by Subject "Algebraic design theory"
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Automorphisms of Pairwise Combinatorial Designs
(2012-02-14)In this thesis, we investigate group actions on certain families of pairwise combinatorial designs, in particular Hadamard matrices and symmetric 2-(4t-1, 2t-1, t-1) designs. A Hadamard matrix H is called cocyclic if a ... -
Topics in cocyclic development of pairwise combinatorial designs
(2015-10-14)This thesis is a compilation of results dealing with cocyclic development of pairwise combinatorial designs. Motivated by a classification of the indexing and extension groups of the Paley Hadamard matrices due to de ...