二阶常微分方程 meaning in Chinese
second order ordinary differential equation
Examples
- The quasi - weak convergence in c [ a , b ] is studied and applied to the boundary - value problems in the nonlinear ordinary differential equations without the assumption of the continuity , compactness and convexity
摘要研究了连续函数空间中凹（凸）函数列的拟弱收敛性，并应用于没有连续性紧性和凹凸性假定的二阶常微分方程的边值问题。 - Under a certain condition , the existence of the unique solution of the boundary value problem for a class of nonlinear second order ordinary differential equation systems is improved in this paper , and their solving process is also given
摘要证明了一类非线性二阶常微分方程组边值问题在一定条件下存在唯一的解并且给出了解的求法。 - By means of variational structure and z2 group index theory , we obtain multiple solutions of boundary value problems for second - order ordinary differential equations and lower bound estimate for number of the solutions
摘要本文利用变分原理和z2不变群指标研究了一类二阶常微分方程奇异边值问题的多重解，得出了这类解个数的下界估计。 - The existence of solutions for two - point boundary value problem subject to nonlinear second order differential equation is studied by many methods , such as iterative method , lower and upper solutions method , degree theory , critical theory and etc
非线性二阶常微分方程两点边值问题解的存在性的研究方法有很多，如迭代法、上下解方法、度理论、临界点理论等。 - In this paper , we construct c0 finite elements for second - order ordinary differential equations and second - order hyperbolic equations in time , and at the nodes and some characteristic points several new superconvergence results are derived
本文为二阶常微分方程及二阶双曲型问题的时间方向构造了c ~ 0有限元，在节点及单元内部的一些特征点上获得了超收敛结果。