Abstract
Let G be a transitive group of degree p+2 with p|G| where p ≧ 5 is a prime number, then (i) G is isomorphic to S p+2 or A p+2, if G has an element of order 4, (ii) G is isomorphic to L 2(2q) or P Γ L 2 (2q), if 2q − 1=p is a Mersenne prime and G has no element of order 4.
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References
W. Burnside, Theory of groups of finite order. New York 1955.
D. G. Higman, Finite permutation groups of rank 3. Math. Z. 86, 145–156 (1964).
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Lang, ML. Characterisations of A p+2 and L 2(2q). Arch. Math. 68, 367–370 (1997). https://doi.org/10.1007/s000130050069
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DOI: https://doi.org/10.1007/s000130050069