Results 51 to 60 of about 10,784,145 (367)

Measuring the Lack of Monotonicity in Functions [PDF]

open access: yesSSRN Electronic Journal, 2014
Problems in econometrics, insurance, reliability engineering, and statistics quite often rely on the assumption that certain functions are non-decreasing. To satisfy this requirement, researchers frequently model the underlying phenomena using parametric and semi-parametric families of functions, thus effectively specifying the required shapes of the ...
Danang Teguh Qoyyimi   +2 more
openaire   +3 more sources

A completely monotonic function involving the divided difference of the psi function and an equivalent inequality involving sums

open access: yesThe ANZIAM Journal, 2007
In this paper, a function involving the divided difference of the psi function is proved to be completely monotonic, a class of inequalities involving sums is found, and an equivalent relation between complete monotonicity and one of the class of ...
Feng Qi (祁锋)
semanticscholar   +1 more source

On rational bounds for the gamma function

open access: yesJournal of Inequalities and Applications, 2017
In the article, we prove that the double inequality x 2 + p 0 x + p 0 < Γ ( x + 1 ) < x 2 + 9 / 5 x + 9 / 5 $$ \frac{x^{2}+p_{0}}{x+p_{0}}< \Gamma(x+1)< \frac{x^{2}+9/5}{x+9/5} $$ holds for all x ∈ ( 0 , 1 ) $x\in(0, 1)$ , we present the best possible ...
Zhen-Hang Yang   +3 more
doaj   +1 more source

On testing exponentiality under Type-I censoring

open access: yesFrontiers in Applied Mathematics and Statistics, 2023
Two new goodness-of-fit testing procedures are introduced to test exponentiality when data are subject to Type-I censoring. We proposed four test statistics for this purpose.
Reza Pakyari, Omama M. Al-Hamed
doaj   +1 more source

The Infinite NHPP Software Reliability Model based on Monotonic Intensity Function

open access: yes, 2015
Software testing (debugging) in order to reduce costs in terms of changes in the software reliability and testing costs, need to know in advance is more efficient.
Yoo, Tae-hyun
semanticscholar   +1 more source

The capacity of monotonic functions

open access: yesDiscrete Applied Mathematics, 1998
AbstractWe consider the class M of monotonically increasing binary output functions. M has considerable practical significance in machine learning and pattern recognition because prior information often suggests a monotonic relationship between input and output variables. The decision boundaries of monotonic classifiers are compared and contrasted with
openaire   +2 more sources

Some logarithmically completely monotonic functions and inequalities for multinomial coefficients and multivariate beta functions

open access: yesApplicable Analysis and Discrete Mathematics, 2020
In the paper, the authors extend a function arising from the Bernoulli trials in probability and involving the gamma function to its largest ranges, find logarithmically complete monotonicity of these extended functions, and, in light of logarithmically ...
Feng Qi (祁锋)   +3 more
semanticscholar   +1 more source

Two Approximation Formulas for Bateman’s G-Function with Bounded Monotonic Errors

open access: yesMathematics, 2022
Two new approximation formulas for Bateman’s G-function are presented with strictly monotonic error functions and we deduced their sharp bounds. We also studied the completely monotonic (CM) degrees of two functions involving G(r), deducing two of its ...
Mansour Mahmoud, Hanan Almuashi
doaj   +1 more source

A class of logarithmically completely monotonic functions related to the gamma function with applications [PDF]

open access: yes, 2009
In this article, a necessary and sufficient condition and a necessary condition are established for a class of functions involving the gamma function to be logarithmically completely monotonic on .
Senlin Guo   +2 more
semanticscholar   +1 more source

The monotonicity of the permanent function

open access: yesDiscrete Mathematics, 1991
AbstractLet Ωn denote the set of all n × n doubly stochastic matrices and let Jn = [1/n]n × n. It is conjectured that, for any S ϵ Ωn, the permanent function is monotone increasing on the straight line segment from Jn to S, or equivalently that for any θ, 0 ⩽ θ ⩽ 1, per[(1 − θ)Jn + θS] ⩽ per S for all S ϵ Ωn.
openaire   +2 more sources

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