Results 11 to 20 of about 1,145,184 (278)

Geometric renormalization of weighted networks

open access: yesCommunications Physics
The geometric renormalization technique for complex networks has successfully revealed the multiscale self-similarity of real network topologies and can be applied to generate replicas at different length scales.
Muhua Zheng   +3 more
doaj   +4 more sources

Weighted Geometric Mean and its Properties [PDF]

open access: yes, 2021
Various means (the arithmetic mean, the geometric mean, the harmonic mean, the power means) are often used as central tendency statistics. A new statistic of such type is offered for a sample from a distribution on the positive semi-axis, the γ-weighted ...
Turchyn, Ievgen
core   +3 more sources

On Weighted Geometric Means

open access: yesCanadian Mathematical Bulletin, 1989
The aim of this paper is two-fold: First we prove the Radotype inequality Here denote the weighted geometric means of with where the pi are positive weights. Thereafter we investigate under which conditions the sequence is convergent as n → ∞
Horst Alzer
core   +2 more sources

Weighted arithmetic–geometric operator mean inequalities [PDF]

open access: yesJournal of Inequalities and Applications, 2018
In this paper, we refine and generalize some weighted arithmetic–geometric operator mean inequalities due to Lin (Stud. Math. 215:187–194, 2013) and Zhang (Banach J. Math. Anal. 9:166–172, 2015) as follows: Let A and B be positive operators.
Jianming Xue
doaj   +3 more sources

Calculation of Weighted Geometric Dilution of Precision [PDF]

open access: yesJournal of Applied Mathematics, 2013
To achieve high accuracy in wireless positioning systems, both accurate measurements and good geometric relationship between the mobile device and the measurement units are required.
Chien-Sheng Chen   +3 more
doaj   +3 more sources

Geometric Structures on Spaces of Weighted Submanifolds [PDF]

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2009
In this paper we use a diffeo-geometric framework based on manifolds that are locally modeled on ''convenient'' vector spaces to study the geometry of some infinite dimensional spaces.
Brian Lee
doaj   +4 more sources

Weighted geometric set cover problems revisited

open access: yesJournal of Computational Geometry, 2012
We study several set cover problems in low dimensional geometric settings. Specifically, we describe a PTAS for the problem of computing a minimum cover of given points by a set of weighted fat objects.
Sariel Har-Peled, Mira Lee
doaj   +3 more sources

Bounding the Difference and Ratio Between the Weighted Arithmetic and Geometric Means [PDF]

open access: yesInternational Journal of Analysis and Applications, 2017
In the paper, making use of two integral representations for the difference and ratio of the weighted arithmetic and geometric means and employing the weighted arithmetic-geometric-harmonic mean inequality, the author bounds the difference and ratio ...
Feng Qi
doaj   +4 more sources

Further Improved Weighted Arithmetic-Geometric Operator Mean Inequalities

open access: yesMathematics, 2019
The main purpose of this paper is to present some weighted arithmetic-geometric operator mean inequalities. These inequalities are refinements and generalizations of the corresponding results.
Jianming Xue, Xingkai Hu
doaj   +2 more sources

Sharp Bounds by the Generalized Logarithmic Mean for the Geometric Weighted Mean of the Geometric and Harmonic Means [PDF]

open access: yesJournal of Applied Mathematics, 2012
We present sharp upper and lower generalized logarithmic mean bounds for the geometric weighted mean of the geometric and harmonic means.
Wei-Mao Qian, Bo-Yong Long
doaj   +2 more sources

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