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Titlebook: Elementary Differential Geometry; Andrew Pressley Textbook 20011st edition Springer-Verlag London 2001 Curves and Surfaces.Euclidean Geome

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31#
發(fā)表于 2025-3-26 21:09:05 | 只看該作者
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發(fā)表于 2025-3-27 04:57:21 | 只看該作者
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發(fā)表于 2025-3-27 12:54:37 | 只看該作者
35#
發(fā)表于 2025-3-27 14:46:25 | 只看該作者
Gaussian Curvature and the Gauss Map, remarkable property, established in Chapter 10, that it is unchanged when the surface is bent without stretching, a property that is not shared by the principal curvatures. In the present chapter, we discuss some more elementary properties of the gaussian and mean curvatures, and what a knowledge of them implies about the geometry of the surface.
36#
發(fā)表于 2025-3-27 17:50:35 | 只看該作者
Minimal Surfaces,rn out to be surfaces whose mean curvature vanishes everywhere. The study of these so-called minimal surfaces was initiated by Euler and Lagrange in the mid-18th century, but new examples of minimal surfaces have been discovered quite recently.
37#
發(fā)表于 2025-3-27 23:10:42 | 只看該作者
https://doi.org/10.1007/978-3-322-87461-0he surface does . change. The real importance of the Gauss—Bonnet theorem is as a prototype of analogous results which apply in higher dimensional situations, and which relate . properties to . ones. The study of such relations is one of the most important themes of 20th century Mathematics.
38#
發(fā)表于 2025-3-28 04:05:52 | 只看該作者
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