Results 11 to 20 of about 430,965 (263)

δ(2,2)-Invariant for Lagrangian Submanifolds in Quaternionic Space Forms

open access: yesMathematics, 2020
In the geometry of submanifolds, Chen inequalities represent one of the most important tool to find relationships between intrinsic and extrinsic invariants; the aim is to find sharp such inequalities. In this paper we establish an optimal inequality for
Gabriel Macsim, Adela Mihai, Ion Mihai
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

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

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

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

STRUCTURING THE ECONOMIC SPACE FOR SMALL BUSINESS IN THE AGRO-INDUSTRIAL COMPLEX

open access: yesSiberian Journal of Life Sciences and Agriculture, 2022
Objective. The article is devoted to the disclosure of theoretical issues, the development of guidelines for the structuring of the economic space of small businesses in the agro-industrial complex. Materials and methods.
Egor V. Dudukalov   +3 more
doaj   +1 more source

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   +1 more source

Ricci Curvature Inequalities for Skew CR-Warped Product Submanifolds in Complex Space Forms

open access: yesMathematics, 2020
The fundamental goal of this study was to achieve the Ricci curvature inequalities for a skew CR-warped product (SCR W-P) submanifold isometrically immersed in a complex space form (CSF) in the expressions of the squared norm of mean curvature vector and
Meraj Ali Khan, Ibrahim Aldayel
doaj   +1 more source

Parallel submanifolds of complex space forms II [PDF]

open access: yesNagoya Mathematical Journal, 1983
This is a continuation of Part I, which appeared in this journal.In the previous paper I we have defined the following notions: orthogonal Jordan triple system (OJTS), orthogonal symmetric graded Lie algebra (OSGLA), orthogonal Jordan algebra (OJA), Hermitian symmetric graded Lie algebra (HSGLA).
openaire   +7 more sources

Product complex submanifolds on of indefinite complex space forms

open access: yesRocky Mountain Journal of Mathematics, 1988
An analogue of the Segre imbedding for the indefinite complex projective (and hyperbolic) space is constructed. The paper then deals with isometric holomorphic immersions of a product of two complete indefinite Kähler manifolds into a complex projective space.
Ikawa, Toshihiko   +2 more
openaire   +2 more sources

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