Results 21 to 30 of about 1,107,761 (293)

Reconsidering trigonometric integrators [PDF]

open access: yesANZIAM Journal, 2009
AbstractIn this paper we look at the performance of trigonometric integrators applied to highly oscillatory differential equations. It is widely known that some of the trigonometric integrators suffer from low-order resonances for particular step sizes.
O'Neale, Dion, McLachlan, RI
openaire   +3 more sources

Discrete complementary exponential and sine integral functions

open access: yesDemonstratio Mathematica, 2023
Discrete analogues of the sine integral and complementary exponential integral functions are investigated. Hypergeometric representation, power series, and Laplace transforms are derived for each.
Assaf Samer, Cuchta Tom
doaj   +1 more source

Studying Some Stochastic Differential Equations with trigonometric terms with Application

open access: yesZanco Journal of Pure and Applied Sciences, 2022
In this paper we look at several (trigonometric) stochastic differential equations, we find the general form for such nonlinear stochastic differential equation by using the I'to formula.
Abdulghafoor Jasim Salim , Ali A. Asmael
doaj   +1 more source

A fractional q-integral operator associated with a certain class of q-Bessel functions and q-generating series

open access: yesAdvances in Difference Equations, 2021
This paper deals with Al-Salam fractional q-integral operator and its application to certain q-analogues of Bessel functions and power series. Al-Salam fractional q-integral operator has been applied to various types of q-Bessel functions and some power ...
Shrideh Al-Omari   +2 more
doaj   +1 more source

On Kudriasov Conditions for Univalence of Integral Operators Defined by Generalized Bessel Functions

open access: yesMathematics, 2022
In this article, we studied the necessary conditions for the univalence of integral operators that involve two functions: the generalized Bessel function and a function from the well-known class of normalized analytic functions in the open unit disk. The
Mohsan Raza   +4 more
doaj   +1 more source

Certain families of integral formulas involving Struve functions

open access: yesBoletim da Sociedade Paranaense de Matemática, 2019
Recently, a large number of integral formulas involving Bessel functions and their extensions have been investigated. The objective of this paper is to establish four classes of integral formulas associated with the Struve functions, which are expressed ...
Junesang Choi, Nisar Koottakkaran Sooppy
doaj   +1 more source

q-Analogues and properties of the Laplace-type integral operator in the quantum calculus theory

open access: yesJournal of Inequalities and Applications, 2020
In this paper, we discuss the q-Laplace-type integral operator on certain class of special functions. We propose q-analogues and obtain results involving polynomials of even orders and functions of q-trigonometric types.
Shrideh Khalaf Al-Omari
doaj   +1 more source

Computational Technique to Study Analytical Solutions to the Fractional Modified KDV-Zakharov-Kuznetsov Equation

open access: yesAbstract and Applied Analysis, 2022
In this article, we study and investigate the analytical solutions of the space-time nonlinear fractional modified KDV-Zakharov-Kuznetsov (mKDV-ZK) equation.
Mohamed A. Abdoon   +2 more
doaj   +1 more source

Integrability of trigonometric series III [PDF]

open access: yesBulletin of the Australian Mathematical Society, 1971
Ralph P. Boas, Jr, proved the following theorem: Let g be an odd function, integrable on (0, π) and periodic with period 2π, and its Fourier series be Σ bn sinnt. If 0 < r < 1 and bn ≥ 0 b > for all n, then t−rg(t) ∈ L(0, π) if and only if the series Σ bn/n1−r converges. Philip Heywood asked whether the conditions g(t) ∈ L(0, π) and bn ≥ 0 can
Izumi, Masako, Izumi, Shin-ichi
openaire   +4 more sources

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