Results 21 to 30 of about 68 (64)

An analysis of exponential kernel fractional difference operator for delta positivity

Nonlinear Engineering
Positivity analysis for a fractional difference operator including an exponential formula in its kernel has been examined. A composition of two fractional difference operators of order (ν,μ)\left(\nu ,\mu ) in the sense of Liouville–Caputo type operators
Mohammed Pshtiwan Othman
doaj   +1 more source

Sharp bounds for the tangent mean by weighted power mean of arithmetic and geometric means

Open Mathematics
Using the monotonicity rules for the ratios of two functions (power series), the optimal bounds for the tangent mean in terms of weighted power means of arithmetic and geometric means are obtained.
Xu Hui-Zuo
doaj   +1 more source

Some classes of completely monotonic functions

, 2002
. A function f: (0, ∞) → R is said to be completely monotonic if (−1) n f (n) (x) ≥ 0 for all x> 0 and n = 0, 1, 2,.... In this paper we present several new classes of completely monotonic functions.
Christian Berg, Horst Alzer, Alzer, Horst, Berg, Christian   +3 more
core  

Optical soliton solutions of the coupled Radhakrishnan-Kundu-Lakshmanan equation by using the extended direct algebraic approach. [PDF]

Heliyon, 2023
Mahmood A, Srivastava HM, Abbas M, Abdullah FA, Othman Mohammed P, Baleanu D, Chorfi N.   +6 more
europepmc   +1 more source

Convexity of ratios of the modified Bessel functions of the first kind with applications. [PDF]

Rev Mat Complut, 2022
Yang ZH, Tian JF.
europepmc   +1 more source

Equality of Ultradifferentiable Classes by Means of Indices of Mixed O-regular Variation. [PDF]

Results Math, 2022
Jiménez-Garrido J, Sanz J, Schindl G.
europepmc   +1 more source

Mental Health and the Perceived Usability of Digital Mental Health Tools Among Essential Workers and People Unemployed Due to COVID-19: Cross-sectional Survey Study. [PDF]

JMIR Ment Health, 2021
Mata-Greve F, Johnson M, Pullmann MD, Friedman EC, Griffith Fillipo I, Comtois KA, Arean P.   +6 more
europepmc   +1 more source

Notes on three conjectures involving the digamma and generalized digamma functions. [PDF]

J Inequal Appl, 2018
Matejíčka L.
europepmc   +1 more source

Sharp Smith's bounds for the gamma function. [PDF]

J Inequal Appl, 2018
Li XQ, Liu ZM, Yang ZH, Zheng SZ.
europepmc   +1 more source

On approximating the modified Bessel function of the second kind. [PDF]

J Inequal Appl, 2017
Yang ZH, Chu YM.
europepmc   +1 more source