Results 31 to 40 of about 14,913 (164)

Some properties of functions related to certain classes of completely monotonic functions and logarithmically completely monotonic functions

open access: yesFilomat, 2014
In this article, we establish several properties of the composition of functions which are related to certain classes of completely monotonic functions and logarithmically completely monotonic functions.
Cheung, WS, Guo, S, Srivastava, HM
openaire   +4 more sources

Completely Monotonic and Related Functions

open access: yesJournal of Mathematical Analysis and Applications, 1996
Let \(L^N\) denote the class of functions defined by \[ f\in L^N\Leftrightarrow (-1)^k f^{(k)}(t)\geq 0,\quad \forall t>0,\quad \forall k,\quad 0\leq k\leq N. \] For \(N\to \infty\) we write \(f\in L\); such functions are well known as completely monotonic on \((0,\infty)\). The implication \[ f\in L^N\Rightarrow [\forall \alpha> 1: f^\alpha\in L^N] \]
openaire   +1 more source

On the Properties of Estimates of Monotonic Mean Vectors for Multivariate Normal Distributions [PDF]

open access: yesJournal of Statistical Theory and Applications (JSTA), 2015
.Problems concerning estimation of parameters and determination the statistic, when it is known a priori that some of these parameters are subject to certain order restrictions, are of considerable interest.
Abouzar Bazyari
doaj   +1 more source

Interplay between reflection positivity and crossing symmetry in the bootstrap approach to CFT

open access: yesJournal of High Energy Physics, 2022
Crossing symmetry (CS) is the main tool in the bootstrap program applied to CFT. This consists in an equality which imposes restrictions on the CFT data of a model, i.e., the OPE coefficients and the conformal dimensions.
Leandro Lanosa   +2 more
doaj   +1 more source

Necessary and sufficient conditions for a class of functions and their reciprocals to be logarithmically completely monotonic

open access: yesJournal of Inequalities and Applications, 2011
We prove that the function F α,β (x) = x α Γ β (x)/Γ(βx) is strictly logarithmically completely monotonic on (0, ∞) if and only if (α, β) ∈ {(α, β) : β > 0, β ≥ 2 ...
Lv Yu-Pei, Sun Tian-Chuan, Chu Yu-Ming
doaj  

Logarithmically Complete Monotonicity Properties Relating to the Gamma Function

open access: yesAbstract and Applied Analysis, 2011
We prove that the function fα,β(x)=Γβ(x+α)/xαΓ(βx) is strictly logarithmically completely monotonic on (0,∞) if (α,β)∈{( α,β):1/α≤β≤1, α≠1}∪{(α,β ...
Tie-Hong Zhao, Yu-Ming Chu, Hua Wang
doaj   +1 more source

High-Profile VRU Detection on Resource-Constrained Hardware Using YOLOv3/v4 on BDD100K

open access: yesJournal of Imaging, 2020
Vulnerable Road User (VRU) detection is a major application of object detection with the aim of helping reduce accidents in advanced driver-assistance systems and enabling the development of autonomous vehicles.
Vicent Ortiz Castelló   +3 more
doaj   +1 more source

On the Composition of Completely Monotonic Functions and Completely Monotonic Sequences and Related Questions [PDF]

open access: yesJournal of the London Mathematical Society, 1983
The authors answer several previously open questions about c.m. (completely monotonic) sequences and functions. (1) If W(x) is c.m. on \([a,\infty)\) and \(\{\Delta x_ k\}\) is c.m. with \(x_ 0\geq a,\) then \(\{W(x_ k)\}_ 0^{\infty}\) is c.m. Also, the sequence \(\{\mu_ k^{\lambda}\},\quad\mu_ 0=1,\quad\mu_ k>0,\quad k=1,2,...,\) is c.m.
Lorch, Lee, Newman, Donald J.
openaire   +2 more sources

A completely monotonic function involving the gamma and trigamma functions

open access: yesKuwait Journal of Science, 2016
In the paper the author provides necessary and sufficient conditions on $a$ for the function\begin{equation*}\frac{1}{2}\ln(2\pi)-x+\biggl(x-\frac{1}{2}\biggr)\ln x-\ln\Gamma(x)+\frac1{12}{\psi'(x+a)}\end{equation*}and its negative to be completely ...
Feng Qi
doaj  

REMARKS ON COMPLETE MONOTONICITY OF A FUNCTION INVOLVING THE GAMMA FUNCTION

open access: yesПроблемы анализа, 2015
In the note, the authors give several remarks on the paper in "Chen and Haigang Zhou On completely monotone of an arbitrary real parameter function involving the gamma function. Applied Mathematics and Compulation, 2014, vol. 242, pp.
F. Qi, B. N. Guo
doaj  

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