extreme value problem meaning in English

极值问题

A generalization of an extreme value problem in competition
一道极值赛题的推广
Two full conditions for extreme value problem
求解条件极值问题的两个充分条件
Notes on extreme value problem of multi - variable functions
关于多元函数极值问题的注记
Some extreme value problems for inscribed and circumscribed triangles in a circle
圆内接与外切三角形中的某些极值问题
In the end of this chapter , we study the wiener index for the ( m , n ) - graph . this may help for the study of the following problem : which graphs have the wiener index equal to the natural numbers besides 2 and 5 , or the extreme value problem of the wiener index
本章最后给出了( m ， n ) -图类的wiener数，这有助于探讨下述问题：以任何2 、 5之外的自然数为其wiener数的图类四北工业大学硕士学位论文的研究，以及wiener数的极值问题的研究。