四零点辅助函数在除<span>X</span><sub>1</sub><span>X</span><sub>2</sub><span>X</span><sub>3</sub><span>X</span><sub>4</sub>外其余为非主特征条件下的估值

Evaluation of the Assistant Function with Four Zeros and all Nonprincipal Characters but X₁X₂X₃X₄

LI Yi-jun

Chinese Quarterly Journal of Mathematics . 2006, (2): 196 -201 .