3.Related mathematical and physical foundationissues An interesting, related question is: Can non-oriented Möbius strips appear on the spatial limit cycles of three-dimensional differential autonomous systems? The answer is yes. This situation occurs in the theoretical st ...
以下斜体文字完全录自 ChatGPT: This is a copy of a conversation between ChatGPT Anonymous. Report content You said: 空间封闭曲线的旋转数 ChatGPT said: 空间封闭曲线的旋转数是微分几何和拓扑学中的一个重要不变量,广泛应用于数学和物理领域。 科学网+1维基百科,自由的百 ...
2.Mathematical Difficulties in Defining Rotation Numbers Differential geometry studies the geometric properties of differential manifolds. It is a mainstream research direction in modern mathematics and the basis of general relativity. It is closely related to topology, algebraic geo ...
Guan Keying Department of Mathematics, School of Science, Beijing Jiaotong University Email: keying.guan@gmail.com Abstract: It is pointed out that in addition to the kink structure, a smooth closed space curve has another important differential topological invariant, namely the number ...