{"title":"局部共形Kaehler流形中的翘曲积半倾斜子流形II","authors":"Koji Matsumoto","doi":"10.15673/TMGC.V11I3.1202","DOIUrl":null,"url":null,"abstract":"In 1994 N.~Papaghiuc introduced the notion of semi-slant submanifold in a Hermitian manifold which is a generalization of $CR$- and slant-submanifolds, \\cite{MR0353212}, \\cite{MR760392}. \nIn particular, he considered this submanifold in Kaehlerian manifolds, \\cite{MR1328947}. \nThen, in 2007, V.~A.~Khan and M.~A.~Khan considered this submanifold in a nearly Kaehler manifold and obtained interesting results, \\cite{MR2364904}. \nRecently, we considered semi-slant submanifolds in a locally conformal Kaehler manifold and we gave a necessary and sufficient conditions of the two distributions (holomorphic and slant) be integrable. \nMoreover, we considered these submanifolds in a locally conformal Kaehler space form. \nIn the last paper, we defined $2$-kind warped product semi-slant submanifolds in almost hermitian manifolds and studied the first kind submanifold in a locally conformal Kaehler manifold. \nUsing Gauss equation, we derived some properties of this submanifold in an locally conformal Kaehler space form, \\cite{MR2077697}, \\cite{MR3728534}. \nIn this paper, we consider same submanifold with the parallel second fundamental form in a locally conformal Kaehler space form. \nUsing Codazzi equation, we partially determine the tensor field $P$ which defined in~\\eqref{1.3}, see Theorem~\\ref{th4.1}. \nFinally, we show that, in the first type warped product semi-slant submanifold in a locally conformal space form, if it is normally flat, then the shape operators $A$ \nsatisfy some special equations, see Theorem~\\ref{th5.2}.","PeriodicalId":36547,"journal":{"name":"Proceedings of the International Geometry Center","volume":"8 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2019-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"Warped product semi-slant submanifolds in locally conformal Kaehler manifolds II\",\"authors\":\"Koji Matsumoto\",\"doi\":\"10.15673/TMGC.V11I3.1202\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In 1994 N.~Papaghiuc introduced the notion of semi-slant submanifold in a Hermitian manifold which is a generalization of $CR$- and slant-submanifolds, \\\\cite{MR0353212}, \\\\cite{MR760392}. \\nIn particular, he considered this submanifold in Kaehlerian manifolds, \\\\cite{MR1328947}. \\nThen, in 2007, V.~A.~Khan and M.~A.~Khan considered this submanifold in a nearly Kaehler manifold and obtained interesting results, \\\\cite{MR2364904}. \\nRecently, we considered semi-slant submanifolds in a locally conformal Kaehler manifold and we gave a necessary and sufficient conditions of the two distributions (holomorphic and slant) be integrable. \\nMoreover, we considered these submanifolds in a locally conformal Kaehler space form. \\nIn the last paper, we defined $2$-kind warped product semi-slant submanifolds in almost hermitian manifolds and studied the first kind submanifold in a locally conformal Kaehler manifold. \\nUsing Gauss equation, we derived some properties of this submanifold in an locally conformal Kaehler space form, \\\\cite{MR2077697}, \\\\cite{MR3728534}. \\nIn this paper, we consider same submanifold with the parallel second fundamental form in a locally conformal Kaehler space form. \\nUsing Codazzi equation, we partially determine the tensor field $P$ which defined in~\\\\eqref{1.3}, see Theorem~\\\\ref{th4.1}. \\nFinally, we show that, in the first type warped product semi-slant submanifold in a locally conformal space form, if it is normally flat, then the shape operators $A$ \\nsatisfy some special equations, see Theorem~\\\\ref{th5.2}.\",\"PeriodicalId\":36547,\"journal\":{\"name\":\"Proceedings of the International Geometry Center\",\"volume\":\"8 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2019-01-21\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Proceedings of the International Geometry Center\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.15673/TMGC.V11I3.1202\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"Mathematics\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of the International Geometry Center","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.15673/TMGC.V11I3.1202","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Mathematics","Score":null,"Total":0}
引用次数: 2
摘要
1994年N. Papaghiuc在厄米流形中引入了半倾斜子流形的概念,它是$CR$和倾斜子流形的推广,\cite{MR0353212}, \cite{MR760392}。特别地,他考虑了Kaehlerian流形中的子流形\cite{MR1328947}。然后,在2007年,V. a . Khan和M. a . Khan在一个近Kaehler流形中考虑了这个子流形,得到了有趣的结果,\cite{MR2364904}。本文研究了局部共形Kaehler流形中的半倾斜子流形,给出了两种分布(全纯分布和倾斜分布)可积的充分必要条件。此外,我们考虑了这些子流形的局部共形Kaehler空间形式。在最后一篇文章中,我们定义了几乎厄米流形中的$2$ -类翘曲积半倾斜子流形,并研究了局部共形Kaehler流形中的第一类子流形。利用高斯方程,我们得到了该子流形在局部共形Kaehler空间形式下的一些性质,\cite{MR2077697}, \cite{MR3728534}。在局部共形Kaehler空间中,考虑具有平行第二基本形式的同一子流形。利用Codazzi方程,我们部分确定了在\eqref{1.3}中定义的张量场$P$,见定理\ref{th4.1}。最后,我们证明了在局部共形空间形式的第一类翘曲积半斜子流形中,如果它通常是平坦的,那么形状算子$A$满足一些特殊方程,见定理\ref{th5.2}。
Warped product semi-slant submanifolds in locally conformal Kaehler manifolds II
In 1994 N.~Papaghiuc introduced the notion of semi-slant submanifold in a Hermitian manifold which is a generalization of $CR$- and slant-submanifolds, \cite{MR0353212}, \cite{MR760392}.
In particular, he considered this submanifold in Kaehlerian manifolds, \cite{MR1328947}.
Then, in 2007, V.~A.~Khan and M.~A.~Khan considered this submanifold in a nearly Kaehler manifold and obtained interesting results, \cite{MR2364904}.
Recently, we considered semi-slant submanifolds in a locally conformal Kaehler manifold and we gave a necessary and sufficient conditions of the two distributions (holomorphic and slant) be integrable.
Moreover, we considered these submanifolds in a locally conformal Kaehler space form.
In the last paper, we defined $2$-kind warped product semi-slant submanifolds in almost hermitian manifolds and studied the first kind submanifold in a locally conformal Kaehler manifold.
Using Gauss equation, we derived some properties of this submanifold in an locally conformal Kaehler space form, \cite{MR2077697}, \cite{MR3728534}.
In this paper, we consider same submanifold with the parallel second fundamental form in a locally conformal Kaehler space form.
Using Codazzi equation, we partially determine the tensor field $P$ which defined in~\eqref{1.3}, see Theorem~\ref{th4.1}.
Finally, we show that, in the first type warped product semi-slant submanifold in a locally conformal space form, if it is normally flat, then the shape operators $A$
satisfy some special equations, see Theorem~\ref{th5.2}.