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关于带有Ricci孤子的trans-Sasakian流形的注记(英文)
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作者 陈小民 武国宁 《数学杂志》 CSCD 北大核心 2014年第4期603-609,共7页
本文主要研究带有Ricci孤子的(α,β)型trans-Sasakian流形,证明了带有Ricci孤子(g,ξ,λ)的3-维紧致trans-Sasakian流形是一个Sasakian流形.此外,如果α,β是常数,得到带有梯度Ricci孤子的trans-Sasakian流形是Einstein流形.
关键词 Ricci孤子 梯度Ricci孤子 trans-sasakian流形 SASAKIAN流形 EINSTEIN流形
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Some Properties of <i>CR</i>-Submanifolds of a Nearly Trans-Sasakian Manifold with a Semi Symmetric Non-Metric Connection
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作者 Lovejoy S. Das Mobin Ahmad Abdul Haseeb 《Journal of Applied Mathematics and Physics》 2014年第8期813-822,共10页
This paper deals with the study of CR-submanifolds of a nearly trans-Sasakian manifold with a semi symmetric non-metric connection. Nijenhuis tensor, integrability conditions for some distributions on CR-submanifolds ... This paper deals with the study of CR-submanifolds of a nearly trans-Sasakian manifold with a semi symmetric non-metric connection. Nijenhuis tensor, integrability conditions for some distributions on CR-submanifolds of a nearly trans-Sasakian manifold with a semi symmetric non- metric connection are discussed. 展开更多
关键词 CR -Submanifolds NEARLY trans-sasakian Manifold SEMI SYMMETRIC Non-Metric CONNECTION Distribution
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