On the elation structure of specific designs |
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Authors: | W A Jackson |
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Institution: | (1) Royal Holloway and Bedford New College, University of London, TW20 0EX Egham Hill, Egham, Surrey, UK |
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Abstract: | Consider symmetric 2-designs D which have an automorphism group G containing sufficiently many elations. This paper proves that all elations in G have the same order and classifies the elation structure (i.e. centre-axis pairs) of a well-defined subgroup of G. For one class, D is necessarily a projective space.The results in this paper form part of a PhD thesis submitted by the author to the University of London. The author gratefully acknowledges the support of the Commonwealth Scholarship Commission. |
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