It is well known that the conditional symmetry method is an efficient way and play an important role to study the exact.
而对于非线性偏微分方程求解还有大量的方法，像经典的Lie对称方法，直接方法，假设法，几何方法，广义条件对称以及形式分离变量法等等。
In theory,simulation and experiment,it was proved that the crosspolarization is eliminated in geometric-optics condition when the geometries of the front fed Cassegrain compact range satisfy the Mizugutch condition.
从理论、仿真及实验三方面证明了当前馈卡塞格伦紧缩场几何布局满足圆对称条件时,从几何光学角度来看,不会产生交叉极化的这一特性;同时对紧缩场布局设计及边齿参数作了优化设计,提出优化准则,并给出设计结果;根据布局结果制造了小型前馈卡塞格伦紧缩场K2010,对其幅度特性、相位特性及交叉极化在X波段、Ku波段及Ka波段进行实验测量;根据测量结果及仿真结果,对K2010的性能进行分析及总结。
Optimal Design of Inspiration Mechanism under Symmetrical and Asymmetrical Information Conditions;
信息对称与非对称条件下激励机制的优化设计
The Consumers Choice under the Circumstances of Information Dissymmetry;
信息不对称条件下的消费者行为选择
Dicusssion on the Development of Book Market Under the Condition of Information Asymmetry;
论信息不对称条件下图书市场的发展
Resources and Information Openness on the Condition of Information Dissymmetry
信息不对称条件下资源信息公开探析
Research of Financial Control upon the Subsidiary Company for Business Group under the Asymmetric Information Condition;
信息不对称条件下对子公司财务控制研究
The difficulties and countermeasures of employment of the graduatesin institutions under asymmetric information;
信息不对称条件下高校毕业生就业问题与对策
The Question and Countermeasure Research of Rural Market Under the Information Asymmetry Condition;
信息不对称条件下的农村市场问题及对策研究
Research on AC-AC Matrix Converter under Unbalanced Input Voltage;
输入不对称条件下交—交矩阵变换器的研究
Contingency Management of Supply Chain with Asymmetric Information;
不对称信息条件下的供应链突变管理
Credit Risks Management of Corporation with Asymmetric Information;
不对称信息条件下公司信用风险管理
Parallel ILU factorization Preconditioners for Symmetric M-matrix;
对称M矩阵的并行不完全分解预条件
Study on the Cost Control Model Under Asymmetric Information Condition;
非对称信息条件下成本控制模型研究
Production Strategy in Supply Chain Under Asymmetric Information;
非对称信息条件下供应链的生产策略
Financing Structure of Modern Enterprises in the Non-symmetric Information Condition;
非对称信息条件下现代企业融资结构
Dynamic Phasors Modeling of the VSC-HVDC Under Unbalanced Conditions
不对称运行条件下VSC-HVDC动态相量建模
Principal-agent model based on the principal and agent's asymmetric overconfidence
非对称过度自信条件下委托代理模型
The Sufficient and Necessary Condition for Simultaneously Congruent Diagonalization of Two Symmetric Matrices;
两个对称矩阵一齐合同对角化的充要条件
Inexact Newton Flow Computation Based on Hermitian and Skew-Hermitian Splitting Preconditioners GMRES(m)
以对称反对称分裂预条件处理GMRES(m)的不精确牛顿法潮流计算