Results 21 to 30 of about 1,077 (113)

On a Riemannian Invariant of Chen Type

open access: yesRocky Mountain Journal of Mathematics, 2008
The paper is submitted to Rocky Mountain Journal of ...
openaire   +3 more sources

Inequalities involving k-Chen invariants for submanifolds of Riemannian product manifolds

open access: yesCommunications Faculty Of Science University of Ankara Series A1Mathematics and Statistics, 2018
Summary: An optimal inequality involving the scalar curvatures, the mean curvature and the \(k\)-Chen invariant is established for Riemannian submanifolds. Particular cases of this inequality is reported. Furthermore, this inequality is investigated on submanifolds, namely slant, \(F\)-invariant and \(F\)-anti invariant submanifolds of an almost ...
Gülbahar, Mehmet   +2 more
openaire   +3 more sources

A class of implicit symmetric symplectic and exponentially fitted Runge–Kutta–Nyström methods for solving oscillatory problems

open access: yesAdvances in Difference Equations, 2018
The construction of implicit Runge–Kutta–Nyström (RKN) method is considered in this paper. Based on the symmetric, symplectic, and exponentially fitted conditions, a class of implicit RKN integrators is obtained.
Huai Yuan Zhai   +2 more
doaj   +1 more source

Chen-Type Inequality for Generic Submanifolds of Quaternionic Space Form and Its Application

open access: yesJournal of New Theory
In 1993, the theory of Chen invariants started when Chen wrote basic inequalities for submanifolds in space forms. This inequality is called Chen’s first inequality. Afterward, many geometers studied many papers dealing with this new inequality.
Amine Yılmaz
doaj   +1 more source

Extremities Involving B. Y. Chen’s Invariants for Real Hypersurfaces in Complex Quadric

open access: yesInternational Electronic Journal of Geometry, 2018
Summary: The article is concerned with the study of real hypersurfaces of the complex quadric \(Q^m\). We establish B. Y. Chen's inequalities for real hypersurfaces of the complex quadric \(Q^m\) and by considering the equality case, we obtain some consequences.
BANSAL, Pooja   +2 more
openaire   +4 more sources

Chen invariants for Riemannian submersions and their applications in meteorology

open access: yes, 2017
We will completely change our results and presentation.
Gulbahar, Mehmet   +2 more
openaire   +2 more sources

On Chen invariant of CR-submanifolds in a complex hyperbolic space

open access: yesTsukuba Journal of Mathematics, 2002
Recently \textit{B. Y. Chen} [Jap. J. Math., New Ser. 26, No. 1, 105--127 (2000; Zbl 1026.53009)] introduced an invariant for a Riemannian manifold and obtained a sharp inequality between his invariant and the squared mean curvature for a CR-submanifolds \(M\) in real spaceforms.
openaire   +2 more sources

On Hecke lifting conjecture for framed knots

open access: yesEuropean Physical Journal C: Particles and Fields
Motivated by an amazing integrality structure conjecture for the U(N) Chern–Simons quantum invariants of framed knots investigated by Mariño and Vafa, a new conjectural formula, named Hecke lifting conjecture, was proposed in Chen et al.
Shengmao Zhu
doaj   +1 more source

Pinching Results for Submanifolds in Lorentzian–Sasakian Manifolds Endowed with a Semi-Symmetric Non-Metric Connection

open access: yesMathematics
We establish an improved Chen inequality involving scalar curvature and mean curvature and geometric inequalities for Casorati curvatures, on slant submanifolds in a Lorentzian–Sasakian space form endowed with a semi-symmetric non-metric connection. Also,
Mohammed Mohammed   +2 more
doaj   +1 more source

Chen inequalities on warped product Legendrian submanifolds in Kenmotsu space forms and applications

open access: yesJournal of Inequalities and Applications
In the current work, we study the geometry and topology of warped product Legendrian submanifolds in Kenmotsu space forms F 2 n + 1 ( ϵ ) $\mathbb{F}^{2n+1}(\epsilon )$ and derive the first Chen inequality, including extrinsic invariants such as the mean
Fatemah Abdullah Alghamdi   +2 more
doaj   +1 more source

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