Hypersurfaces in space forms satisfying the condition $L_kx=Ax+b$
| Autor: | Alias, Luis J., Kashani, S. M. B. |
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| Rok vydání: | 2009 |
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| Druh dokumentu: | Working Paper |
| Popis: | We study hypersurfaces either in the sphere \s{n+1} or in the hyperbolic space \h{n+1} whose position vector $x$ satisfies the condition $L_kx=Ax+b$, where $L_k$ is the linearized operator of the $(k+1)$-th mean curvature of the hypersurface for a fixed $k=0,...,n-1$, $A\in\R{(n+2)\times (n+2)}$ is a constant matrix and $b\in\R{n+2}$ is a constant vector. For every $k$, we prove that when $A$ is self-adjoint and $b=0$, the only hypersurfaces satisfying that condition are hypersurfaces with zero $(k+1)$-th mean curvature and constant $k$-th mean curvature, and open pieces of standard Riemannian products of the form $\s{m}(\sqrt{1-r^2})\times\s{n-m}(r)\subset\s{n+1}$, with $0 Comment: First version (July 2008). Final version (March 2009). To appear in the Taiwanese Journal of Mathematics |
| Databáze: | arXiv |
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