The 2-rotational Steiner triple systems of order 25
نویسندگان
چکیده
Chee, Y.M. and G.F. Royle, The 2rotational Steiner triple systems of order 25, Discrete Mathematics 97 (1991) 93-100. In this paper, we enumerate the 2-rotational Steiner triple systems of order 25. There are exactly 140 pairwise non-isomorphic such designs. All these designs have full automorphism groups of order 12. We also investigate the existence of subsystems and quadrilaterals in these designs.
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ورودعنوان ژورنال:
- Discrete Mathematics
دوره 97 شماره
صفحات -
تاریخ انتشار 1991