Results 11 to 20 of about 15,533 (235)

Contra Harmonic Mean Labelling of Graphs

Mapana - Journal of Sciences, 2013
A graph labelling is an assignment of integers to the vertices or edges or both subject to certain conditions. A Graph G(V, E) with p vertices and q edges is called a Contra Harmonic mean graph if it is possible to label all the vertices x ∈ V with distinct labels f(x) from {1, 2, 3, 4, …., p } in such a way that each edge e = uv is labelled with
G Narasimhan, R Sampathkumar
openaire   +3 more sources

Sharp inequalities for the Neuman-Sandor mean in terms of arithmetic and contra-harmonic means

Journal of Numerical Analysis and Approximation Theory, 2013
In this paper, we find the greatest values \(\alpha\) and \(\lambda\), and the least values \(\beta\) and \(\mu\) such that the double inequalities \[C^{\alpha}(a,b)A^{1-\alpha}(a,b)
Yu-Ming Chu, Miao-Kun Wang, Bao-Yu Liu
doaj   +4 more sources

Bounds for the Convex Combination of Contra-harmonic and Harmonic Means by the Generalized Logarithmic Mean

European Journal of Pure and Applied Mathematics, 2022
We verify the optimal inequalities between generalized logarithmic mean and the weighted arithmetic mean of contra-harmonic and harmonic means.
Annop Sonubon, Somsak Orankitjaroen, Kamsing Nonlaopon   +2 more
openaire   +1 more source

On a Mixed Arithmetic-Mean, Geometric-Mean, Harmonic-Mean Inequality

, 2023
In 1992, F. Holland conjectured a mixed arithmetic-mean, geometric-mean inequality and it was proved by K. Kedlaya in 1994. In this note, we provide more extended inequality: a mixed arithmetic-mean, geometric-mean, harmonic-mean ...
Kyumin Nam
core   +3 more sources

On approximating the quasi-arithmetic mean

Journal of Inequalities and Applications, 2019
In this article, we prove that the double inequalities α1[7C(a,b)16+9H(a,b)16]+(1−α1)[3A(a,b)4+G(a,b)4]
Tie-Hong Zhao, Bu-Chuan Zhou, Miao-Kun Wang, Yu-Ming Chu   +3 more
doaj   +1 more source

Analisis Perbandingan Metode Harmonic Mean Filter dan Contraharmonic Mean Filter untuk mengurangi noise pada Citra Digital

, 2022
The results of digital camera recordings to take digital images, there are often some disturbances that appear in the digital image called noise. The noise that is often found in digital images is Salt-Pepper Noise and Speckle Noise.
Arifin, Nurhikmah, Chairy, Amalia, Insani, Chairi Nur   +2 more
core   +2 more sources

Harmonic diffeomorphisms of noncompact surfaces and Teichmüller spaces [PDF]

, 2002
Let g : M -> N be a quasiconformal harmonic diffeomorphism between noncompact Riemann surfaces M and N. In this paper we study the relation between the map g and the complex structures given on M and N.
Markovic, V. (Vladimir), Markovic, Vladimir   +1 more
core   +1 more source

New Modification on Heun’s Method Based on Contraharmonic Mean for Solving Initial Value Problems with High Efficiency

Journal of Mathematics, 2020
In this paper, small modification on Improved Euler’s method (Heun’s method) is proposed to improve the efficiency so as to solve ordinary differential equations with initial condition by assuming the tangent slope as an average of the arithmetic mean ...
Abushet Hayalu Workie
doaj   +1 more source

Improvements of bounds for the Sándor–Yang means

Journal of Inequalities and Applications, 2019
In the article, we provide new bounds for two Sándor–Yang means in terms of the arithmetic and contraharmonic means. Our results are the improvements of the previously known results.
Wei-Mao Qian, Hui-Zuo Xu, Yu-Ming Chu
doaj   +1 more source

Seven Means, Generalized Triangular Discrimination, and Generating Divergence Measures

Information, 2013
Jensen-Shannon, J-divergence and Arithmetic-Geometric mean divergences are three classical divergence measures known in the information theory and statistics literature.
Inder Jeet Taneja
doaj   +1 more source