The two basic modes of mathematical model-behavior mode and state variable mode, along with the isomorphic and homomorphic relation between models and real system are described.
系统数学模型的基本模式：行为模式和状态变量模式以及在状态变量模式下的同构与同态系统；
2
A method of identifying isomorphic hybrid switching topology based on mathematical model of hybrid branch is proposed.
并根据简单图的同构判定理论，提出了基于混合支路数学模型的同构混合开关拓扑辨识方法。
3
The authors proposed a method for reliability evaluation and re-evaluation of distribution network by dual isomorphic Bayesian network model.