数学物理学报(英文版) ›› 2014, Vol. 34 ›› Issue (1): 209-214.doi: 10.1016/S0252-9602(13)60138-1
周芳|米芳|刘合国
ZHOU Fang, MI Fang, LIU He-Guo
摘要:
Let G be a π-separable group for a set of primes, let N be a normal subgroup of G, and let θ be an Iπ-character (i.e., irreducible π-partial character) of N. We obtain a necessary and sufficient condition for the number of Iπcharacters of G over θ to take the possible maximum |G : N|π. Some applications are given.
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