Results 11 to 20 of about 2,683,293 (266)

Decay of Mean Values of Multiplicative Functions [PDF]

open access: yesCanadian Journal of Mathematics, 2003
AbstractFor given multiplicative functionf, with |f(n)| ≤ 1 for alln, we are interested in how fast its mean value (1/x) Σn≤xf(n) converges. Halász showed that this depends on the minimumM(overy∈ ℝ) of Σp≤x(1 – Re(f(p)p–iy)/p, and subsequent authors gave the upper bound ⪡ (1 +M)e–M.
Granville, Andrew, Soundararajan, K.
openaire   +2 more sources

Functions Satisfying the Mean Value Property [PDF]

open access: yesTransactions of the American Mathematical Society, 1962
Introduction. In the preceding paper [8] we proved that if all harmonic functions in n-dimensional bounded domain D satisfy the mean value property (MVP) with respect to some point P and a given density function ,t (volumedensity, surface-density, etc.) then, under some simple assumptions on ,, D must necessarily be a ball with center P. In the present
Friedman, Avner, Littman, Walter
openaire   +2 more sources

On a New Integral Inequality: Generalizations and Applications

open access: yesAxioms, 2022
In this paper, we present some generalizations and improvements of a new integral inequality from the 29th IMC in 2022. Some applications of our new results are also provided.
Huaping Huang, Wei-Shih Du
doaj   +1 more source

Symmetric partially Darboux functions and multiple points mean value results [PDF]

open access: yesMathematica Bohemica
We consider mean value results for symmetric multivariable functions whose partial functions satisfy the intermediate value property.
Viorel Vîjîitu
doaj   +1 more source

Some Remarks on Harmonic Functions in Minkowski Spaces

open access: yesMathematics, 2019
We prove that in Minkowski spaces, a harmonic function does not necessarily satisfy the mean value formula. Conversely, we also show that a function satisfying the mean value formula is not necessarily a harmonic function.
Songting Yin
doaj   +1 more source

Influence of Customer Attrition on Diffusion of Business Education Services [PDF]

open access: yesInternational Journal of Mathematical, Engineering and Management Sciences, 2017
Innovation diffusion models have been developed by many researchers during the past few decades based on the famous Bass (1969) model. Several such diffusion models have been developed in consideration of price, marketing efforts etc., however, it is ...
Nitin Sachdeva
doaj   +1 more source

ARITHMETIC MEAN OF VALUES AND VALUE AT MEAN OF ARGUMENTS FOR CONVEX FUNCTIONS [PDF]

open access: yesThe ANZIAM Journal, 2008
Abstract We give here some extensions of inequalities of Popoviciu and Rado. The idea is to use an inequality [C. P. Niculescu and L. E. Persson, Convex functions. Basic theory and applications (Universitaria Press, Craiova, 2003), Page 4] which gives an approximation of the arithmetic mean of n values of a given convex function in terms of the ...
openaire   +1 more source

A Testing Coverage Based SRGM Subject to the Uncertainty of the Operating Environment

open access: yesComputer Sciences & Mathematics Forum, 2023
The number of software failures, software reliability, and failure rates can be measured and predicted by the software reliability growth model (SRGM). SRGM is developed and tested in a controlled environment where the operating environment is different.
Sujit Kumar Pradhan   +2 more
doaj   +1 more source

Exponential convexity for Jensen’s inequality for norms

open access: yesJournal of Inequalities and Applications, 2016
In this paper, we investigate n-exponential convexity and log-convexity using the positive functional defined as the difference of the left-hand side and right-hand side of the inequality from (Pečarić and Janić in Facta Univ., Ser. Math. Inform. 3:39-42,
Julije Jakšetić   +2 more
doaj   +1 more source

Significance of FDG–PET standardized uptake values in predicting thyroid disease

open access: yesEuropean Thyroid Journal, 2023
Objective: This study aimed to determine a standardized cut-off value for abnormal 18F-fluorodeoxyglucose (FDG) accumulation in the thyroid gland. Methods: Herein, 7013 FDG–PET/CT scans were included. An automatic thy roid segmentation method using two
Tomohiro Kikuchi   +7 more
doaj   +1 more source

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