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On groups with several doubly-transitive permutation representations

✍ Scribed by Peter J. Cameron

Publisher
Springer-Verlag
Year
1972
Tongue
French
Weight
704 KB
Volume
128
Category
Article
ISSN
0025-5874

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A subgroup H of a group G is core-free if H contains no non-trivial normal subgroup of G, or equivalently the transitive permutation representation of G on the cosets of H is faithful. We study the obstacles to a group having large core-free subgroups. We call a subgroup D a ''dedekind'' subgroup of