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On 2-designs

✍ Scribed by P Erdös; Joel C Fowler; Vera T Sós; Richard M Wilson


Publisher
Elsevier Science
Year
1985
Tongue
English
Weight
590 KB
Volume
38
Category
Article
ISSN
0097-3165

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📜 SIMILAR VOLUMES


On 2-(45, 12, 3) designs
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Under the assumption that the incidence matrix of a 2-(45, 12, 3) design has a certain block structure, we determine completely the number of nonisomorphic designs involved. We discover 1136 such designs with trzvial automorphism group. In addition we analyze all 2-(45, 12, 3) designs having an auto

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A Steiner 2-design is 1-rotational over a group G if it admits G as an automorphism group fixing one point and acting regularly on the remainder. 1-rotational Steiner 2-designs have come into fashion since 1981, when Phelps and Rosa (Discrete Math. 33 (1981), 57 66) studied Steiner triple systems th

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