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Groupes lin\'eaires finis permutant deux fois transitivement un ensemble de droites

By Lucas Vienne


Let n >1 be an integer, and G a doubly transitive subgroup of the symmetric group on X={1,...,n}. In this paper we find all linear group representations rho of G on an euclidean vector space V which contains a set of equiangular vector lines GG={,...,} such that : (1) V is generated by v_1,...,v_n, (2) for all i in X and all g in G, = . Then we illustrate our construction when G=SL_d(q), q odd and d > 1.Comment: 10 page

Topics: Mathematics - Group Theory, 20B05, 20B20, 20B25
Year: 2009
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