Dupin hypersurface
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Wikipedia : http://en.wikipedia.org/wiki/Dupin_hypersurfaceIn differential geometry, a Dupin hypersurface is a submanifold in a space form, whose principal curvatures have globally constant multiplicities.^{[1]}
Application
A hypersurface is called a Dupin hypersurface if the multiplicity of each principal curvature is constant on hypersurface and each principal curvature is constant along its associated principal directions.^{[2]} All proper Dupin submanifolds arise as focal submanifolds of proper Dupin hypersurfaces.^{[3]}
References
- ^ K. Shiohama (4 October 1989). Geometry of Manifolds. Elsevier. pp. 181–. ISBN 978-0-08-092578-3.
- ^ Themistocles M. Rassias (1992). The Problem of Plateau: A Tribute to Jesse Douglas & Tibor Radó. World Scientific. pp. 61–. ISBN 978-981-02-0556-0.
- ^ Robert Everist Greene; Shing-Tung Yau (1993). Partial Differential Equations on Manifolds. American Mathematical Soc. pp. 466–. ISBN 978-0-8218-1494-9.
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