Results 1 to 10 of about 244 (53)
Fractal-Fractional Mathematical Model Addressing the Situation of Corona Virus in Pakistan. [PDF]
Results Phys, 2020 This work is the consideration of a fractal fractional mathematical model on the transmission and control of corona virus (COVID-19), in which the total population of an infected area is divided into susceptible, infected and recovered classes.
Shah K +5 more
europepmc +2 more sources
Sampling Theorems for Sturm Liouville Problem with Moving Discontinuity Points [PDF]
Boundary Value Problems, 2014 In this paper, we investigate the sampling analysis for a new Sturm-Liouville problem with symmetrically located discontinuities which are defined to depending on a neighborhood of a midpoint of the interval.
Altinisik, Nihat, Hira, Fatma
core +3 more sources
Fixed point theory approach to boundary value problems for second-order difference equations on non-uniform lattices [PDF]
Advances in Differential Equations, 2014 In this paper, by means of the appropriate Green’s function, an integral representation for the solutions of certain boundary value problems for second-order difference equations on (quadratic andq-quadratic) non-uniform lattices is presented.
Eduardo Godoy, Iván Area, Juan J Nieto
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Green's function for singular fractional differential equations and applications [PDF]
arXiv.org, 2022 In this paper, we study the existence of positive solutions for nonlinear fractional differential equation with a singular weight. We derive the Green’s function and corresponding integral operator and then examine compactness of the operator.
J. Lee, Yong-Hoon Lee
semanticscholar +1 more source
On a first-order differential system with initial and nonlocal boundary conditions
Demonstratio Mathematica, 2022 This paper is devoted to the existence of solutions and the multiplicity of positive solutions of an initial-boundary value problem for a nonlinear first-order differential system with nonlocal conditions.
Ngoc Le Thi Phuong, Long Nguyen Thanh
doaj +1 more source
Nonlinear Engineering, 2022 This work presents the existential and unique results for the solution to a kind of high-order fractional nonlinear differential equations involving Caputo fractional derivative.
AhmadSoltani Leyla
doaj +1 more source
Open Mathematics, 2022 In this article, we focus on the existence of positive solutions and establish a corresponding iterative scheme for a nonlinear fourth-order equation with indefinite weight and Neumann boundary conditions y(4)(x)+(k1+k2)y″(x)+k1k2y(x)=λh(x)f(y(x)),x∈[0,1]
Wang Jingjing, Gao Chenghua, He Xingyue
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Third-order differential equations with three-point boundary conditions
Open Mathematics, 2021 In this paper, a third-order ordinary differential equation coupled to three-point boundary conditions is considered. The related Green’s function changes its sign on the square of definition. Despite this, we are able to deduce the existence of positive
Cabada Alberto, Dimitrov Nikolay D.
doaj +1 more source
Boundary Value Problems, 2013 This work is concerned with the existence and uniqueness of positive solutions for the following fractional boundary value problem: {−D0+νy(t)=f(t,y(t),y(t))+g(t,y(t ...
C. Zhai, Mengru Hao
semanticscholar +2 more sources
Boundary Value Problems, 2014 We consider the two-dimensional differential operator Au(x1,x2)=−a11(x1,x2)ux1x1(x1,x2)−a22(x1,x2)ux2x2(x1,x2)+σu(x1,x2) defined on functions on the half-plane Ω=R+×R with the boundary conditions u(0,x2)=0, x2∈R, where aii(x1,x2), i=1,2, are continuously
A. Ashyralyev, S. Akturk, Y. Sozen
semanticscholar +2 more sources