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关于殆仿切触流形的一个问题
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作者 刘西民 《南开大学学报(自然科学版)》 CAS CSCD 1996年第2期34-36,共3页
本文证明了每一个殆仿切触黎曼流形是某一殆积黎曼流形的超曲面.
关键词 仿切触流形 殆积流形 超曲面 黎曼流形
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CR-submanifolds in Almost Hermitian Manifold
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作者 许志才 徐森林 《Chinese Quarterly Journal of Mathematics》 CSCD 2001年第3期1-7,共7页
Studies are made of the cohomology of CR_ submanifolds and integrability of the distribution D of CR_submanifolds. When dim D⊥】1, the totally umbilical non-trival CR-submanifold i n nea r Kaehler manifold is totall... Studies are made of the cohomology of CR_ submanifolds and integrability of the distribution D of CR_submanifolds. When dim D⊥】1, the totally umbilical non-trival CR-submanifold i n nea r Kaehler manifold is totally geodesic. In the end, we get:If is n ear Kaehler manifold with B】0, then is not permitt ed to have fixed foliate non-trival CR-submanifold. 展开更多
关键词 SUBMANIFOLD complex manifold almost complex manifold DISTRIBUTION INTEGRABILITY
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