Glasnik Matematicki, Vol. 34, No.2 (1999), 123-128.

SOME NEW SYMMETRIC DESIGNS FOR (256,120,56)

Mario-Osvin Pavčević

Zavod za primijenjenu matematiku, Fakultet elektrotehnike i računarstva, Unska 3, 10000 Zagreb, Croatia


Abstract.   We prove the existence of two symmetric designs with parameters (256,120,56) for which the full automorphism group is isomorphic to (Z17.Z8) × (Z7.Z3).

1991 Mathematics Subject Classification.   05B05.

Key words and phrases.   Symmetric design, automorphism group, orbit structure, 2-rank.


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