For the general hexagonal chains, the extremal problem of some important types of conjugated molecules have been solved previously.
对于一般的六角链，一些重要类型的共轭分子的极值问题已得到解决。
We revisit the classical extremal problem on Cartan domains. We first establish theorems for the extremal problem between Cartan domain and the unit ball.
研究了Cartan域上的极值问题。建立Cartan域的单位球之间极值问题的一个定理并给出它的一个应用。
The problem of the lee slope stability of dune is equivalent to the extremal problem of a functional of two-variant function with a variable boundary in this paper.
将沙丘背风坡的稳定性问题等价于一个双参变量函数的待定边界的泛函极值问题。
The use of genetic algorithms achieve about extremal function of problem solving, function has been give.
使用遗传算法实现关于函数极值问题的求解，函数已给出。
We obtain the existence of extremal solutions of the boundary value problem by using the method of lower and upper solutions coupled with monotone iterative technique.
研究一类四阶微分方程解的存在性，利用上下解及单调迭代的方法，得出这类四阶方程的最大解和最小解的存在。
We obtain the existence of extremal solutions of the boundary value problem by using the method of lower and upper solutions coupled with monotone iterative technique.
研究一类四阶微分方程解的存在性，利用上下解及单调迭代的方法，得出这类四阶方程的最大解和最小解的存在。
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