When the number of elements increases, the derivatives within the variational statement will tend to have a constant, or in particular a zero, value . 当元素的数目增加时，变分表达形式中的导数趋于常数，特别情况下可趋于零。
In spite of the very close affinity between the variational theorems and the principle of virtual work, the study of the former is worth-while . 尽管变分定理与虚功原理之间有很紧密的相似关系，然而对前者的研究仍然是有价值的。
H - r variational principle with damping force and its application 变分原理及其应用
Mixed variational inequalities for a fuzzy mapping 带有单模糊映射的混合变分不等式
Generalized implicit quasi - variational inclusions 单调映象的广义隐拟变分包含
A smoothing newton method for variational inequalities 变分不等式的一种光滑化牛顿法
The variational calculation of potential p - harmonic maps 调和映射的变分计算
A type of generalized variation inequality and its applications 一类变分问题及其应用
A family of unified classical variational principles 耦合热弹性动力学的统一变分原理族
The variational principle and application of 数值流形方法的变分原理与应用
