Results 11 to 20 of about 6,088 (266)

Submersions of generic submanifolds of a Kaehler manifold

open access: yesArab Journal of Mathematical Sciences, 2014
Kobayashi has shown that for the submersion π:M→B of a CR-submanifold of a Kaehler manifold M¯ onto an almost Hermitian manifold B,B is necessarily a Kaehler manifold.
Tanveer Fatima, Shahid Ali
doaj   +1 more source

DERIVATIONS ON CR MANIFOLDS

open access: yesCommunications of the Korean Mathematical Society, 2004
Summary: We studied the relation between the tangential Cauchy-Riemann operator \(\overline \partial _b\) on CR-manifolds and the derivation \(d^{\pi^{0,1}}\) associated to the natural projection map \(\pi^{0,1}:TM \otimes {\mathbb C}=T^{1,0} \oplus T^{0,1} \to T^{0,1}\).
Ryu, Jeong Seog, Yi, Seunghun
openaire   +3 more sources

The Neumann problem on the domain in 𝕊3 bounded by the Clifford torus

open access: yesAdvanced Nonlinear Studies, 2023
In this study, the solution of the Neumann problem associated with the CR Yamabe operator on a subset Ω\Omega of the CR manifold S3{{\mathbb{S}}}^{3} bounded by the Clifford torus Σ\Sigma is discussed.
Case Jeffrey S.   +4 more
doaj   +1 more source

On CR-Lightlike Product of an Indefinite Kaehler Manifold

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2011
We have studied mixed foliate CR-lightlike submanifolds and CR-lightlike product of an indefinite Kaehler manifold and also obtained relationship between them.
Rakesh Kumar   +2 more
doaj   +1 more source

Skew semi-invariant submanifolds of generalized quasi-Sasakian manifolds

open access: yesKarpatsʹkì 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
doaj   +1 more source

Semi-isometric CR immersions of CR manifolds into Kähler manifolds and applications

open access: yesANNALI SCUOLA NORMALE SUPERIORE - CLASSE DI SCIENZE, 2021
Final version, accepted in Ann. Sc. Norm. Super. Pisa Cl. Sci. (5)
openaire   +2 more sources

On Generic submanifolds of a locally conformal Kahler manifold with parallel canonical structures

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1995
The study of CR-submanifolds of a Kähler manifold was initiated by Bejancu [1]. Since then many papers have appeared on CR-submanifolds of a Kähler manifold.
M. Hasan shahid, A. Sharfuddin
doaj   +1 more source

Some submersions of CR-hypersurfaces of Kaehler-Einstein manifold

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2003
The Riemannian submersions of a CR-hypersurface M of a Kaehler-Einstein manifold M˜ are studied. If M is an extrinsic CR-hypersurface of M˜, then it is shown that the base space of the submersion is also a Kaehler-Einstein manifold.
Vittorio Mangione
doaj   +1 more source

On Totally Contact Umbilical Contact CR-Lightlike Submanifolds Of Indefinite Sasakian Manifolds

open access: yesDemonstratio Mathematica, 2014
After brief introduction, we prove that a totally contact umbilical CR- lightlike submanifold is totally contact geodesic. We obtain a necessary and sufficient condition for a CR-lightlike submanifold to be an anti-invariant submanifold.
Gogna Manish   +2 more
doaj   +1 more source

Global Regularity for the ∂-b-Equation on CR Manifolds of Arbitrary Codimension

open access: yesAbstract and Applied Analysis, 2014
Let M be a C∞ compact CR manifold of CR-codimension l≥1 and CR-dimension n-l in a complex manifold X of complex dimension n≥3. In this paper, assuming that M satisfies condition Y(s) for some s with 1≤s≤n-l-1, we prove an L2-existence theorem and global ...
Shaban Khidr, Osama Abdelkader
doaj   +1 more source

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