Results 11 to 20 of about 163,425 (54)

ESTIMATES FOR SOBOLEV-ORTHONORMAL FUNCTIONS AND GENERATED BY LAGUERRE FUNCTIONS

open access: yesПроблемы анализа, 2021
In this paper, we consider the system of functions λ^α_(r,n(x)) (n = 0, 1, . . .), α > −1, r ∈ N, orthonormal with respect to a Sobolev-type inner product and generated by the system of Laguerre functions.
R. M. Gadzhimirzaev
doaj   +1 more source

A Kind of New Higher-Order Mond-Weir Type Duality for Set-Valued Optimization Problems

open access: yesMathematics, 2019
In this paper, we introduce the notion of higher-order weak adjacent epiderivative for a set-valued map without lower-order approximating directions and obtain existence theorem and some properties of the epiderivative.
Liu He   +4 more
doaj   +1 more source

PEMODELAN KASUS DIARE DI PROVINSI BALI DENGAN METODE ANALISIS REGRESI SPASIAL

open access: yesE-Jurnal Matematika, 2021
Diarrhea is a disease that occurs due to changes in the frequency of bowel movements and can cause death. In 2018, 115.889 cases of diarrhea were found in Bali Province.
I.G.A. DIAH SULASIH   +2 more
doaj   +1 more source

On the Bounds for a Two-Dimensional Birth-Death Process with Catastrophes

open access: yesMathematics, 2018
The model of a two-dimensional birth-death process with possible catastrophes is studied. The upper bounds on the rate of convergence in some weighted norms and the corresponding perturbation bounds are obtained.
Anna Sinitcina   +9 more
doaj   +1 more source

New general decay rates of solutions for two viscoelastic wave equations with infinite memory

open access: yesMathematical Modelling and Analysis, 2020
We consider in this paper the problem of asymptotic behavior of solutions for two viscoelastic wave equations with infinite memory. We show that the stability of the system holds for a much larger class of kernels and get better decay rate than the ones ...
Aissa Guesmia
doaj   +1 more source

New generalized conformable fractional impulsive delay differential equations with some illustrative examples

open access: yesAIMS Mathematics, 2021
This article is concerned to develop a novel generalized class of fractional impulsive delay differential equations. These equations are defined using newly discovered generalized conformable fractional operators which unify various previously-defined ...
Hua Wang   +3 more
doaj   +1 more source

First-order impulsive differential systems: sufficient and necessary conditions for oscillatory or asymptotic behavior

open access: yesAdvances in Difference Equations, 2021
In this paper, we study the oscillatory and asymptotic behavior of a class of first-order neutral delay impulsive differential systems and establish some new sufficient conditions for oscillation and sufficient and necessary conditions for the asymptotic
Shyam Sundar Santra   +3 more
doaj   +1 more source

A certain q-Ruscheweyh type derivative operator and its applications involving multivalent functions

open access: yesAdvances in Difference Equations, 2021
In the present paper, by using the concept of convolution and q-calculus, we define a certain q-derivative (or q-difference) operator for analytic and multivalent (or p-valent) functions.
Bilal Khan   +5 more
doaj   +1 more source

A Block by Block Method for Solving System of Volterra Integral Equations with Continuous and Abel Kernels

open access: yesMathematical Modelling and Analysis, 2015
The aim of the present paper is to introduce a block by block method for solving system of nonlinear Volterra integral equations with continuous kernels and system of Abel integral equations.
Roghayeh Katani, Sedaghat Shahmorad
doaj   +1 more source

GENERATING FUNCTIONS OF THE PRODUCT OF 2-ORTHOGONAL CHEBYSHEV POLYNOMIALS WITH SOME NUMBERS AND THE OTHER CHEBYSHEV POLYNOMIALS

open access: yesПроблемы анализа, 2020
In this paper, we give the generating functions of binary product between 2-orthogonal Chebyshev polynomials and kFibonacci, k-Pell, k-Jacobsthal numbers and the other orthogonal Chebyshev polynomials.
H. Merzouk, B. Aloui, A. Boussayoud
doaj   +1 more source

Home - About - Disclaimer - Privacy