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Slant submanifolds ofcomplex projective and complex hyperbolic spaces

Published online by Cambridge University Press:  13 November 2000

Bang-Yen Chen
Affiliation:
Department of Mathematics, Michigan State University, East Lansing, MI 48824-1027, U.S.A.. E-mail: bychen@math.msu.edu
Yoshihiko Tazawa
Affiliation:
Department of Natural Sciences, Faculty of Engineering, Tokyo Denki University, Chiba 270-13, Japan. E-mail: tazawa@cck.dendai.ac.jp
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Abstract

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An interesting class of submanifolds of Hermitian manifolds is the class of slant submanifolds which are submanifolds with constant Wirtinger angle. In [14,7,8] slant submanifolds of complex projective and complex hyperbolic spaces have been investigated. In particular, it was shown that there exist many proper slant surfaces in CP^2 and inCH^2 and many proper slant minimal surfaces in C2. In contrast, in the first part of this paper we prove that there do not exist proper slant minimal surfaces inCP^2 and in CH^2. In the second part, we present a general construction procedure for obtaining the explicit expressions of such slant submanifolds. By applying this general construction procedure, we determine the explicit expressions of special slant surfaces of CP^2 and of CH^2. Consequently, we are able to completely determine the slant surface which satisfies a basic equality. Finally, we apply the construction procedure to prove that special θ-slant isometric immersions of a hyperbolic plane into a complex hyperbolic plane are not unique in general.

Type
Research Article
Copyright
2000 Glasgow Mathematical Journal Trust