Results 91 to 100 of about 596,403 (183)
Four-dimensional contact CR-submanifolds in S7(1)
, 2017 International audienceThe analogue of CR -submanifolds in (almost) Kählerian manifolds is the concept of contact CR -submanifolds in Sasakian manifolds.
Marian Ioan Munteanu +5 more
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Codimension reduction and second fundamental form of CR submanifolds in complex space forms [PDF]
, 2009 Considering n-dimensional real submanifolds M of a complex space form (M¯n+p,g¯,J) which are CR submanifolds of CR dimension n−m2, we study the condition h(FX,Y)+h(X,FY)=0 on the structure tensor F naturally induced from the almost complex structure J of
Djorić, Mirjana
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Warped product semi-slant submanifolds in locally conformal Kaehler manifolds II
Pracì Mìžnarodnogo Geometričnogo Centru, 2018 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}.
Koji Matsumoto
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Skew semi-invariant submanifolds of generalized quasi-Sasakian manifolds
Karpatsʹkì Matematičnì Publìkacìï, 2018 In the present paper, we study a new class of submanifolds of a generalized Quasi-Sasakian manifold, called skew semi-invariant submanifold. We obtain integrability conditions of the distributions on a skew semi-invariant submanifold and also find the ...
M.D. Siddiqi, A. Haseeb, M. Ahmad
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Minimal CR-submanifolds of a six-dimentional sphere
International Journal of Mathematics and Mathematical Sciences, 1995 We establish several formulas for a 3-dimensional CR-submanifold of a six-dimensional sphere and state some results obtained by making use of them.
M. Hasan Shahid, S. I. Husain
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Data-driven modeling and prediction of non-linearizable dynamics via spectral submanifolds. [PDF]
Nat Commun, 2022 Cenedese M +4 more
europepmc +1 more source
Minimal $CR$ submanifolds of complex space forms
, 1987 Integral formulas for the second fundamental form of submanifolds immersed in a complex space form are given. As applications, pinching theorems for compact minimal $CR$ submanifolds with flat normal connection immersed in a complex projective space are ...
Kon, Masahiro
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Weak helix submanifolds of euclidean spaces [PDF]
, 2009 It is shown that there exist nonstrong weak 2-helix surfaces of ...
Di Scala, Antonio Jose'
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TOTALLY UMBILICAL CR-SUBMANIFOLDS OF A KAEHLER MANIFOLD
Tamkang Journal of Mathematics, 1993 In the present paper we study totally umbilical CR-submanifolds of a Kaehler manifold. A classification theorem for a $D^\perp$-totally umbilical CR-submanifold is proved. The conditions under which a CR- submanifold becomes a CR-product are obtained, and finally a theorem for a CR-submanifold to be a proper CR-product is also ...
Khursheed Haider, S. M. +2 more
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Contact CR-Submanifolds of Kenmotsu Manifolds [PDF]
, 2011 In this paper, we research some fundamental properties of contact CR-Submanifolds of a Kenmotsu manifold. We show that the anti-invariant distribution is always integrable and give a necessary and sufficient condition for the invariant distribution to be
Atçeken, Mehmet
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