Based on the Hamiltonian principle, the coupled nonlinear functions of the system are presented as a Neumann problem.
由哈米尔顿原理作为动力学基础，建立起系统的非线性耦合运动方程组。
The existence of multiple solutions is obtained for Neumann problem of sublinear elliptic equations by the minimax methods in the critical point theory.
用临界点理论中的极小极大方法得到了次线性椭圆方程Neumann问题多重解的存在性。
In the late 1940s Georg Neumann, a German engineer, succeeded in fine-tuning the battery's chemistry to avoid this problem, making a sealed version possible.
1940年代晚期，德国工程师GeorgNeumann成功地微调了电池的化学机制，从而消除了这个问题，使得将之密封包装成为可能。
And the problem is converted to the typical Neumann boundary value problem for the elliptic equations by inducing the scalar potential function.
通过引入静电场的标量位函数，将电场强度的矢量泊松方程转化为位势的椭圆型偏微分方程的诺依曼边值问题。
And the problem is converted to the typical Neumann boundary value problem for the elliptic equations by inducing the scalar potential function.
通过引入静电场的标量位函数，将电场强度的矢量泊松方程转化为位势的椭圆型偏微分方程的诺依曼边值问题。
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