Glasnik Matematicki, Vol. 36, No.1 (2001), 169-175.
SOME NEW 2-(17,4,3) AND 2-(52,13,4) DESIGNS
Dean Crnković and Sanja Rukavina
Department of Mathematics, Faculty of Philosophy, Omladinska 14,
51000 Rijeka, Croatia
Abstract. We have constructed 377 non-isomorphic
2-(17,4,3) designs as derived and 649 non-isomorphic 2-(52,13,4)
designs as residual designs of symmetric (69,17,4) designs admitting
an action of Z6.
1991 Mathematics Subject Classification.
Key words and phrases. Symmetric design, residual
design, derived design, automorphism, orbit structure.
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