Hostname: page-component-586b7cd67f-dlnhk Total loading time: 0 Render date: 2024-12-02T22:44:38.279Z Has data issue: false hasContentIssue false

Immersions with Semi-Definite Second Fundamental Forms

Published online by Cambridge University Press:  20 November 2018

Leo B. Jonker*
Affiliation:
Queen's University, Kingston, Ontario
Rights & Permissions [Opens in a new window]

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Let M be a. complete connected Riemannian manifold of dimension n and let £:MRn+k be an isometric immersion into the Euclidean space Rn+k. Let ∇ be the connection on Mn and let be the Euclidean connection on Rn+k. Also let

denote the second fundamental form B(X, Y) = (xY)→. Here TP(M) denotes the tangent space at p, NP(M) the normal space and (…)→ the normal component.

Type
Research Article
Copyright
Copyright © Canadian Mathematical Society 1975

References

1. Alexander, S. B., Reducibility of Euclidean immersions of low codimension, J. Differential Geometry 3 (1969), 6982.Google Scholar
2. do, M. P. Carmo and Lima, E., Isometric immersions with semi-definite second quadratic forms, Arch. Math. 20 (1969), 173175.Google Scholar
3. Hartman, P., On the isometric immersions in Euclidean space of manifolds with nonnegative sectional curvatures, II, Trans. Amer. Math. Soc. 147 (1970), 529540.Google Scholar
4. Klee, V. L. Jr., Convex sets in Linear spaces, Duke Math. J. 18 (1951), 443465.Google Scholar
5. Klee, V. L., Convex sets in linear spaces, II, Duke Math. J. 18 (1951), 875883.Google Scholar
6. Sacksteder, R., On hyper surf aces with no negative sectional curvatures, Amer. J. Math. 82 (1960), 609630.Google Scholar
7. Sard, A., The measure of the critical values of differentiable maps, Bull. Amer. Math. Soc. 48 (1942), 883890.Google Scholar
8. Toponogov, V. A., Riemannian spaces which contain straight lines, Dokl. Akad. Nauk SSSR 127 (1959), 977-979, and Amer. Math. Soc. Transi. Ser. 2, 37, 287290.Google Scholar
9. Wilder, R. L., Topology of manifolds, Amer. Math. Soc. Colloquium publications, Vol. 32 (Providence, 1949).Google Scholar