Results 11 to 20 of about 2,717 (263)

Common Coincidence Points and Common Fixed Points in Fuzzy Semi-Metric Spaces

open access: yesMathematics, 2018
We propose the so-called fuzzy semi-metric space in which the symmetric condition is not assumed to be satisfied. In this case, there are four kinds of triangle inequalities that should be considered.
Hsien-Chung Wu
doaj   +1 more source

Some Improvements of the Cauchy-Schwarz Inequality Using the Tapia Semi-Inner-Product

open access: yesMathematics, 2020
The aim of this article is to establish several estimates of the triangle inequality in a normed space over the field of real numbers. We obtain some improvements of the Cauchy–Schwarz inequality, which is improved by using the Tapia semi-inner-product ...
Nicuşor Minculete, Hamid Reza Moradi
doaj   +1 more source

Neutrosophic Double Controlled Metric Spaces and Related Results with Application

open access: yesFractal and Fractional, 2022
In this paper, the authors introduce the notion of neutrosophic double controlled metric spaces as a generalization of neutrosophic metric spaces. For this purpose, two non-comparable functions, ξ and Γ, are used in triangle inequalities.
Fahim Uddin   +5 more
doaj   +1 more source

On Sharp Triangle Inequalities in Banach Spaces II

open access: yesJournal of Inequalities and Applications, 2010
Sharp triangle inequality and its reverse in Banach spaces were recently showed by Mitani et al. (2007). In this paper, we present equality attainedness for these inequalities in strictly convex Banach spaces.
Kichi-Suke Saito, Ken-Ichi Mitani
doaj   +2 more sources

On certain new refinements of Finsler-Hadwiger inequalities

open access: yesJournal of Inequalities and Applications, 2017
Several refinements of the Finsler-Hadwiger inequality and its reverse in the triangle are discussed. A new one parameter family of Finsler-Hadwiger inequalities and their reverses are proved.
Omran Kouba
doaj   +1 more source

Properties of distance spaces with power triangle inequalities

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2016
Metric spaces provide a framework for analysis and have several very useful properties. Many of these properties follow in part from the  triangle inequality.
D. Greenhoe
doaj   +1 more source

Pre-Metric Spaces Along with Different Types of Triangle Inequalities

open access: yesAxioms, 2018
The T 1 -spaces induced by the pre-metric spaces along with many forms of triangle inequalities are investigated in this paper. The limits in pre-metric spaces are also studied to demonstrate the consistency of limit concept in the induced ...
Hsien-Chung Wu
doaj   +1 more source

From developing to developed: Mechanisms of health inequalities among seniors in China and Japan under macro-field control

open access: yesFrontiers in Psychology, 2022
The behavioral characteristics, health statuses, and survival times of seniors in China and Japan using the fixed cohort method and constructed relationship models among capital, habitus, and health based on Pierre Bourdieu’s social theory of practice ...
Ai-Bin, Lin Shengai
doaj   +1 more source

On Reverses of Some Inequalities in n-Inner Product Spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2010
We present some new reverses of Cauchy-Bunyakovsky-Schwarz inequality, and Triangle and Boas-Bellman Type inequalities in n-inner product spaces. The results obtained generalize the results of Dragomir (2003–2005) in n-inner product spaces.
Renu Chugh, Sushma Lather
doaj   +1 more source

Inequalities That Imply the Norm of a Linear Space Is Induced by an Inner Product

open access: yesMathematics, 2023
The aim of this paper is to investigate when a linear normed space is an inner product space. Several conditions in a linear normed space are formulated with the help of inequalities. Some of them are from the literature and others are new. We prove that
Sorin Rădulescu   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy