Glasnik matematički, Vol. 38 No. 2, 2003.
Original scientific paper
2-(56,12,3) designs and their class graphs
Sanja Rukavina
Abstract
There exist exactly 1122 pairwise non-isomorphic 2-(56,12,3) designs being the residual designs of the known symmetric (71,15,3) designs. Six pairwise non-isomorphic strongly regular graphs with parameters (35,16,6,8) were constructed as class graphs of the obtained residual designs. Orders of the full automorphism groups of these graphs are 12, 32, 96, 192, 288 and 40320.
Keywords
Residual design; automorphism group; class graph
Hrčak ID:
1315
URI
Publication date:
1.12.2003.
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