On the minimal norm of a non-regular generalized character of an arbitrary finite group
نویسنده
چکیده
INTRODUCTION AND NOTATION: As usual, for G a finite group, we denote the set of non-identity elements of G by G, the number of conjugacy classes of G by k(G) and the set of complex irreducible characters ofG by Irr(G). When H is a non-trivial subgroup of G, we let k+(G,H) denote the number of irreducible characters of G which do not vanish identically on H (and we remark that k+(G,H) = k(G) when |H | ≥ √
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تاریخ انتشار 2009