On total curvature of immersions and minimal submanifolds of spheres
Rotondaro, Giovanni
Commentationes Mathematicae Universitatis Carolinae, Tome 34 (1993), p. 459-463 / Harvested from Czech Digital Mathematics Library

For closed immersed submanifolds of Euclidean spaces, we prove that $\int |\mu |^2\, dV\geq V/R^2$, where $\mu $ is the mean curvature field, $V$ the volume of the given submanifold and $R$ is the radius of the smallest sphere enclosing the submanifold. Moreover, we prove that the equality holds only for minimal submanifolds of this sphere.

Publié le : 1993-01-01
Classification:  53A05,  53C40,  53C42,  53C45,  58E12
@article{118603,
     author = {Giovanni Rotondaro},
     title = {On total curvature of immersions and minimal submanifolds of spheres},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     volume = {34},
     year = {1993},
     pages = {459-463},
     zbl = {0787.53049},
     mrnumber = {1243078},
     language = {en},
     url = {http://dml.mathdoc.fr/item/118603}
}
Rotondaro, Giovanni. On total curvature of immersions and minimal submanifolds of spheres. Commentationes Mathematicae Universitatis Carolinae, Tome 34 (1993) pp. 459-463. http://gdmltest.u-ga.fr/item/118603/

Benson R. Euclidean Geometry and Convexity, Mc Graw-Hill, New York, 1966. | MR 0209949 | Zbl 0187.44103

Chen B.-Y. Total Mean Curvature and Submanifolds of Finite Type, World Scientific, Singapore, 1984. | MR 0749575 | Zbl 0537.53049

Chern S.S.; Hsiung C.C. On the isometry of compact submanifolds in Euclidean space, Math. Ann. 149 (1962/63), 278-285. (1962/63) | MR 0148011

Kühnel W. A lower bound for the $i$-th total absolute curvature of an immersion, Colloq. Math. 41 (1969), 253-255. (1969) | MR 0591931

Reilly R. On the first eigenvalue of the Laplacian for compact submanifolds of Euclidean space, Comm. Math. Helv. 52 (1977), 525-533. (1977) | MR 0482597 | Zbl 0382.53038

Spivak M. A Comprehensive Introduction to Differential Geometry, Vol. I-V, Publish or Perish, Berkeley, 1970-1979. | MR 0532830 | Zbl 0439.53005

Weiner J.L. An inequality involving the length, curvature and torsions of a curve in Euclidean $n$-space, Pacific J. Math. 74 (1978), 531-534. (1978) | MR 0478025 | Zbl 0377.53001

Willmore T.J. Note on embedded surfaces, An. St. Univ. Iasi, s.I.a. Mat. 12B (1965), 493-496. (1965) | MR 0202066 | Zbl 0171.20001

Willmore T.J. Tight immersions and total absolute curvature, Bull London Math. Soc. 3 (1971), 129-151. (1971) | MR 0292003 | Zbl 0217.19001

Willmore T.J. Total Curvature in Riemannian Geometry, Ellis Horwood Limited, Chichester, 1982. | MR 0686105 | Zbl 0501.53038