On the basis of dualvariables variational principle for electromagnetic waveguides, dual edge element is presented in this thesis.
本文基于对偶变量变分原理,参照矢量基有限元的构造,提出了电磁波导的对偶棱边元。
2
By introducing dualvariables, the dual governing equations and boundary conditions, which are composed by mixed variables under whole state space, are obtained.
引入对偶变量,进一步建立使问题化为在以混合变量组成的全状态辛空间中的控制正则方程和初边条件。
3
Based on the dualvariables, the Hamiltonian system theory is introduced into plane orthotropy elasticity, the transformation from Euclidian space to symplectic space is realized.