A catastrophe potential function, which has the same form of swallowtail catastrophe, was obtained by dimensional normalization and diffeomorphism.
基于能量平衡方程建立了热烟气层轰燃模型，经量纲归一化和微分同胚变换，得到属于燕尾突变的势函数。
And then we will see that in the framework of diffeomorphism group the symplectic quotient is torus bundle over the moduli space of special submanifold.
然后，我们将看到微分同胚群作用下的辛商为特殊子流形模空间上的以环面为结构群的丛。
In the last chapter, we introduce the concept of obstruction set for diffeomorphism and obtain some results on normal sets. We do not prove these results directly.
在第三章我们对离散系统引入了阻碍集的概念，并探讨了在此情形下的正常集的一些理论。
In the last chapter, we introduce the concept of obstruction set for diffeomorphism and obtain some results on normal sets. We do not prove these results directly.
在第三章我们对离散系统引入了阻碍集的概念，并探讨了在此情形下的正常集的一些理论。
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