Results 51 to 60 of about 13,449 (192)

Chen Inequality for Statistical Submanifolds of Cosymplectic Manifolds

open access: yes, 2020
In the present paper, we obtain the basic Chen inequalities for the statistical submanifolds of statistical cosymplectic manifolds. Also, we discuss the same inequalities for Legendrian submanifolds.
openaire   +2 more sources

Measuring health inequalities between genders and age groups with realization of potential life years (RePLY)

open access: yes, 2007
Objective We propose a new method to measure health inequalities caused by conditions amenable to policy intervention and use this to identify health differences between sexes and age groups.
Petrie, Dennis   +8 more
core   +1 more source

The COVID-19 pandemic: one year later – an occupational perspective

open access: yesScandinavian Journal of Work, Environment & Health, 2021
About one year ago, we wrote about how the COVID-19 pandemic was unfolding worldwide and started to impact our personal and professional lives (1). Little did we know that, one year later, more than 2.5 million people would have died, with the highest ...
Alex Burdorf   +2 more
doaj   +1 more source

Lagrangian submanifolds attaining equality in the improved Chen's inequality

open access: yesBulletin of the Belgian Mathematical Society - Simon Stevin, 2007
Recently Oprea gave an improved version of Chen's inequality for Lagrangian submanifolds of $\mathbb CP^n(4)$. For minimal submanifolds this inequality coincides with the original previously proved version. We consider here those non minimal 3-dimensional Lagrangian submanifolds in $\mathbb CP^3 (4)$ attaining at all points equality in the improved ...
Bolton, J., Vrancken, L.
openaire   +4 more sources

A Study on Chen-like Inequalities for Half Lightlike Submanifolds of a Lorentzian Manifold Endowed with Semi-Symmetric Metric Connection

open access: yes, 2020
In this paper, Chen-like inequalities of a half lightlike submanifolds of a real space form N(c) with constant sectional curvature c, equipped with semi-symmetric metric connection are established and some important characterization theorems for such ...
Doğan, Burçin, Poyraz, Nergiz
core   +1 more source

Intrinsic and Extrinsic Geometry of Kählerian Slant Submanifolds in Complex Space Forms

open access: yesMathematics
The study of complex space forms plays a central role in differential geometry, as these manifolds provide a natural framework for exploring geometric structures endowed with rich symmetries, extending both Riemannian and Kählerian geometries.
Andreea Olteanu   +3 more
doaj   +1 more source

Ground state solutions for asymptotically periodic fractional Choquard equations

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2019
This paper is dedicated to studying the following fractional Choquard equation \begin{equation*} (-\triangle)^s u+V(x)u=\left(\int_{\mathbb{R}^N}\frac{Q(y)F(u(y))}{|x-y|^\mu}\mathrm{d}y\right)Q(x)f(u), \qquad u\in H^s(\mathbb{R}^{N}), \end{equation*
Sitong Chen, Xianhua Tang
doaj   +1 more source

Inequalities of Some Trigonometric Functions

open access: yes, 2003
By using two identities and two inequalities relating to Bernoulli’s and Euler’s numbers and power series expansions of cotangent function, secant function, cosecant function and logarithms of functions involving sine function, cosine function and ...
Qi, Feng, Chen, Chao-Ping
core  

Basic Inequalities for Submanifolds of Conformal Kenmotsu Manifolds

open access: yesMathematics
In this paper, we have established some basic inequalities for the submanifolds of conformal Kenmotsu manifolds. As an application, we have also derived the same inequalities for the θ-slant submanifolds of conformal Kenmotsu manifolds.
Qiming Zhao   +4 more
doaj   +1 more source

Retirement and perceived social inferiority strongly link with health inequalities in older age : decomposition of a concentration index of poor health based on Polish cross-sectional data [PDF]

open access: yes, 2016
Identifying mechanisms that generate and sustain health inequalities is a prerequisite for developing effective policy response, but little is known about factors contributing to health inequalities in older populations in post-transitional European ...
Drożdżak, Zuzanna   +3 more
core   +1 more source

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