Results 81 to 90 of about 813 (192)

Radio Number for Generalized Petersen Graphs $P(n,2)$

open access: yesIEEE Access, 2019
Let $G$ be a connected graph and $d(\mu,\omega)$ be the distance between any two vertices of $G$ . The diameter of $G$ is denoted by $diam(G)$ and is equal to $\max \{d(\mu,\omega); \\ \mu,\omega \in G\}$ . The radio labeling (RL) for the graph
Feige Zhang   +4 more
doaj   +1 more source

Geometric Nature of the Turánian of Modified Bessel Function of the First Kind

open access: yesAxioms
This work explores the geometric properties of the Turanian of the modified Bessel function of the first kind (TMBF). Using the properties of the digamma function, we establish conditions under which the normalized TMBF satisfies starlikeness, convexity,
Samanway Sarkar   +3 more
doaj   +1 more source

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  

On complete monotonicity for several classes of functions related to ratios of gamma functions

open access: yesJournal of Inequalities and Applications, 2019
Let Γ(x) $\varGamma (x)$ denote the classical Euler gamma function. The logarithmic derivative ψ(x)=[lnΓ(x)]′=Γ′(x)Γ(x) $\psi (x)=[\ln \varGamma (x)]'=\frac{\varGamma '(x)}{ \varGamma (x)}$, ψ′(x) $\psi '(x)$, and ψ″(x) $\psi ''(x)$ are, respectively ...
Feng Qi, Ravi P. Agarwal
doaj   +1 more source

A certain family of infinite series associated with Digamma functions

open access: yesJournal of Mathematical Analysis and Applications, 1991
The sums of several interesting infinite series were expressed recently in terms of the Psi (or Digamma) functions. The object of this paper is to present a systematic account of these (and of numerous similar or general) series whose sums can be found in the literature in various equivalent forms. Some relevant unifications and further generalizations
Al-Saqabi, B.N   +2 more
openaire   +2 more sources

A study of Hermite-Hadamard inequalities via Caputo-Fabrizio fractional integral operators using strongly ( s , m ) $(s, m)$ -convex functions in the second sense

open access: yesJournal of Inequalities and Applications
New ways for comparing and bounding strongly ( s , m ) $(s,m)$ -convex functions using Caputo fractional derivatives and Caputo-Fabrizio integral operators are explored.
Jie Li   +4 more
doaj   +1 more source

Advanced Hermite-Hadamard-Mercer Type Inequalities with Refined Error Estimates and Applications

open access: yesFractal and Fractional
The purpose of this research is to develop a set of Hermite–Hadamard–Mercer-type inequalities that involve different types of fractional integral operators such as classical Riemann–Liouville fractional integral operators.
Arslan Munir   +3 more
doaj   +1 more source

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