Results 11 to 20 of about 11,320,382 (298)

On generalized complex space forms satisfying certain curvature conditions

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2016
We study Ricci soliton $(g,V,\lambda)$ of generalized complex space forms when the Riemannian, Bochner and $W_{2}$ curvature tensors satisfy certain curvature conditions like semi-symmetric, Einstein semi-symmetric, Ricci pseudo symmetric and Ricci ...
M.M. Praveena, C.S. Bagewadi
doaj   +2 more sources

Isotropic Lagrangian Submanifolds in Complex Space Forms [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 2012
In this paper we study isotropic Lagrangian submanifolds , in complex space forms . It is shown that they are either totally geodesic or minimal in the complex projective space , if . When , they are either totally geodesic or minimal in .
M.B. Kashani
doaj   +2 more sources

Community space in complex learning communities : lessons learnt [PDF]

open access: yes, 2006
Highly complex learning communities where diverse participants collaborate to achieve multiple aims through synergy have the potential to be highly creative and productive.
McDonald, D.M., Weir, G.R.S.
core   +4 more sources

Characterization of Lagrangian Submanifolds by Geometric Inequalities in Complex Space Forms

open access: yesAdvances in Mathematical Physics, 2021
In this paper, we give an estimate of the first eigenvalue of the Laplace operator on a Lagrangian submanifold Mn minimally immersed in a complex space form.
Lamia Saeed Alqahtani
doaj   +1 more source

-harmonic 1-forms on totally real submanifolds in complex space forms

open access: yes, 2023
In this paper, we consider an n-dimensional totally real submanifold M in complex space forms. We establish some vanishing type theorems for (Formula presented.) p-harmonic 1-forms on such submanifolds in both cases: either M is minimalor M is non ...
Nguyen Thac Dung   +3 more
core   +1 more source

Polyharmonic hypersurfaces into complex space forms

open access: yesAnnali di Matematica Pura ed Applicata (1923 -)
AbstractWe characterize homogeneous hypersurfaces in complex space forms which arise as critical points of a higher order energy functional. As a consequence, we obtain existence and non-existence results for $$\mathbb{C}\mathbb{P}^n$$ C P
Balado-Alves, José Miguel
openaire   +4 more sources

A Characterization of Ruled Real Hypersurfaces in Non-Flat Complex Space Forms

open access: yesMathematics, 2020
The Levi-Civita connection and the k-th generalized Tanaka-Webster connection are defined on a real hypersurface M in a non-flat complex space form.
George Kaimakamis   +2 more
doaj   +1 more source

Geometric Mechanics on Warped Product Semi-Slant Submanifold of Generalized Complex Space Forms

open access: yesAdvances in Mathematical Physics, 2021
In this study, we develop a general inequality for warped product semi-slant submanifolds of type Mn=NTn1×fNϑn2 in a nearly Kaehler manifold and generalized complex space forms using the Gauss equation instead of the Codazzi equation.
Yanlin Li, Ali H. Alkhaldi, Akram Ali
doaj   +1 more source

Complex Hypersurfaces in an Indefinite Complex Space Form

open access: yesTokyo Journal of Mathematics, 1987
Let M be a complex hypersurface of index 2s in an \((n+1)\)-dimensional indefinite complex space form of constant holomorphic sectional curvature c(\(\neq 0)\) and of index \(2(s+a),\) where \(a=0\) or 1. The authors prove that M is Einstein if M satisfies \(R(X,Y)\cdot S=0\) where R and S denote the curvature tensor and the Ricci tensor, respectively.
AIYAMA, Reiko   +3 more
openaire   +2 more sources

Two Crystal Forms of a Hydrated 2:1 β-Cyclodextrin Fluconazole Complex: Single Crystal X-ray Structures, Dehydration Profiles, and Conditions for Their Individual Isolation

open access: yesMolecules, 2021
Inclusion complexes between cyclodextrins (CDs) and active pharmaceutical ingredients (APIs) have potential for pharmaceutical formulation. Since crystallization of a given complex may result in the isolation of multiple crystal forms, it is essential to
Andrea Sala   +3 more
doaj   +1 more source

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