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On a Class of Quasi-symmetric Designs

W. H. Holzmann1, H. Kharaghani1
1Department of Mathematics & Computer Science University of Lethbridge Lethbridge, Alberta, T1K 3M4 Canada

Abstract

We show that for each positive integer t, for which there is a skew-type Hadamard matrix of order 4t, there is a quasi-symmetric ((4t1)2,(4t1)(2t1),t(4t3)) design.