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Title
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On a geometry of Ivanov and Shpectorov for the O'Nan sporadic simple group
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Authors
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Francis Buekenhout and Dimitri Leemans
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Reference
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J. Combin. Theory Ser. A 85(1999), no. 2, 148-164.
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Math. Reviews
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2000a:51014
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Zentralblatt
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930.20014
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Abstract
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We show, for the O'Nan sporadic simple group, that there is no RWPRI and (IP)_2 geometry of rank greater than 6 with a subgroup forming the geometry isomorphic to M_11 and that there is no RWPRI and (IP)_2 geometry of rank greater than 5 with a subgroup forming the geometry isomorphic to J_1. The results rely partially on computer algebra.
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