给出了分别满足条件(M1)G的monolithic特征标没有公共的零点;(M2)G的非线性不可约monolithic特征标中最多有两个有公共的零点,的有限群的一个导长的上界.
In this paper, the authors give the upperbound of the derived length of finite solvable groups which satisfy one of the following conditions. (M1) any two nonlinear irreducible monolithic characters have no common zero points (M2) at most two nonlinear irreducible monolithic characters have common zero points.