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Closed Surfaces with Constant Gauss Curvature (Hilbert’s Method)— Generalizations and Problems — General Remarks on Weingarten Surfaces

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Part of the Lecture Notes in Mathematics book series (LNM,volume 1000)

Abstract

Our aim in this section is to prove that the spheres are 1) the only closed surfaces with constant Gauss curvature K, and 2) the only ovaloids with constant mean curvature H. We will actually prove the stronger result that if the principle curvatures k1 and k2 of an ovaloid satisfy a relationship k2 = f(k1) where f is a decreasing function, then the ovaloid is a sphere. Since K = k1k2 and \( H = \frac{1}{2}\left( {{k_1} + {k_2}} \right) \) , the two results, 1) and 2) stated above will follows Irom this theorem. The difference in the formulation of 1) and 2) is 3ue to the fact that on any closed surface there are points where K>O (See II, 4.2). Therefore if K is constant, then K is a positive constant and hence by IV, 1.4, the surface already is an ovaloid. The problem of characterizing arbitrary closed surfaces for which H is constant is much more difficult. It will be considered in Chapter VI and VII.

Keywords

  • Normal Component
  • Main Diagonal
  • Closed Surface
  • Isoperimetric Problem
  • Soap Bubble

These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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© 1983 Springer-Verlag Berlin Heidelberg

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Hopf, H. (1983). Closed Surfaces with Constant Gauss Curvature (Hilbert’s Method)— Generalizations and Problems — General Remarks on Weingarten Surfaces. In: Differential Geometry in the Large. Lecture Notes in Mathematics, vol 1000. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-21563-0_10

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  • DOI: https://doi.org/10.1007/978-3-662-21563-0_10

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-12004-9

  • Online ISBN: 978-3-662-21563-0

  • eBook Packages: Springer Book Archive