Using the homotopy mapping theory, a class of nonlinear problems were studied. 摘要利用同倫映射理論,本文研究了一類非線性問題。
The abduction mapping method was introduced to deduce the transformation relation between the non-unbendable surface and the flat surface. 利用微分幾何中的誘導映射理論求得非可展曲面到平面域內的變換關係。