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On Some Menon Designs with Parameters (324, 153, 72) (CROSBI ID 124248)

Prilog u časopisu | izvorni znanstveni rad

Crnković, Dean ; Held, Dieter On Some Menon Designs with Parameters (324, 153, 72) // Journal of applied algebra and discrete structures, 4 (2006), 1; 23-33-x

Podaci o odgovornosti

Crnković, Dean ; Held, Dieter

engleski

On Some Menon Designs with Parameters (324, 153, 72)

There are exactly 10 symmetric (324, 153, 72) designs admitting an automorphism group isomorphic to $Frob_{; ; 19 \cdot 9}; ; \times Z_2$ acting with orbit size distribution (1, 19, 38, 38, 38, 38, 38, 38, 38, 38) for blocks and points. For eight of these designs, the full automorphism group has order 342 and is isomorphic to $Frob_{; ; 19 \cdot 9}; ; \times Z_2$, one design has $Frob_{; ; 19 \cdot 9}; ; \times Z_4$ and the remaining design $Frob_{; ; 19 \cdot 9}; ; \times Z_8$ as full automorphism group. All 10 designs are self-dual. The derived design (with respect to the fixed block) of the design with full automorphism group of order 1368 is 1-rotational.

symmetric design; Menon design; Hadamard matrix; automorphism group

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Podaci o izdanju

4 (1)

2006.

23-33-x

objavljeno

0972-5946

Povezanost rada

Matematika