Results 21 to 30 of about 406,386 (293)

Integrable Solutions of a Functional-Integral Equation

open access: yesRevista Matemática Complutense, 1989
Under certain assumptions on the functions f,g,k the authors prove that the functional-integral equation \[ x(t)=g(t)+f(t,\int^{1}_{0}k(t,s)x(\phi (s))ds), \] \(t\in [0,1)\) has at least one solution \(x\in L^ 1[0,1]\), which is a.e. nonincreasing on \(L^ 1[0,1]\).
Banaś, Józef, Knap, Zygmunt
openaire   +3 more sources

About a Problem for Loaded Parabolic-Hyperbolic Type Equation with Fractional Derivatives

open access: yesInternational Journal of Differential Equations, 2016
An existence and uniqueness of solution of local boundary value problem with discontinuous matching condition for the loaded parabolic-hyperbolic equation involving the Caputo fractional derivative and Riemann-Liouville integrals have been investigated ...
Kishin B. Sadarangani   +1 more
doaj   +1 more source

Nontrivial solutions of boundary value problems for second order functional differential equations [PDF]

open access: yes, 2015
In this paper we present a theory for the existence of multiple nontrivial solutions for a class of perturbed Hammerstein integral equations. Our methodology, rather than to work directly in cones, is to utilize the theory of fixed point index on affine ...
Calamai, Alessandro, Infante, Gennaro
core   +1 more source

Integral equations for Lamé functions [PDF]

open access: yesProceedings of the Edinburgh Mathematical Society, 1942
In the theory of ordinary linear differential equations with three regular singularities and in the theory of their special and limiting cases, integral representations of the solutions are known to be very important. It seems that there is no corresponding simple integral representation of the solutions of ordinary linear differential equations with ...
openaire   +2 more sources

Weak Solutions of a Coupled System of Urysohn-Stieltjes Functional (Delayed) Integral Equations

open access: yesComplexity, 2018
We study the existence of weak solutions for the coupled system of functional integral equations of Urysohn-Stieltjes type in the reflexive Banach space E.
A. M. A. El-Sayed, M. M. A. Al-Fadel
doaj   +1 more source

Solving special systems of integral equations by using Sumudu transform with a semi-analytical method [PDF]

open access: yesAl-Rafidain Journal of Computer Sciences and Mathematics, 2023
In this paper, specific forms of non-linear systems of integral equations have been solved using the Sumudu transform and the Adomian decomposition method.
Waleed Al-Hayani
doaj   +1 more source

Existence Theorem for Integral and Functional Integral Equations with Discontinuous Kernels

open access: yesAbstract and Applied Analysis, 2012
Existence of extremal solutions of nonlinear discontinuous integral equations of Volterra type is proved. This result is extended herein to functional Volterra integral equations (FVIEs) and to a system of discontinuous VIEs as well.
Ezzat R. Hassan
doaj   +1 more source

Fractional Laplace Transforms - A Perspective [PDF]

open access: yes, 2014
A form of the Laplace transform is reviewed as a paradigm for an entire class of fractional functional transforms. Various of its properties are discussed.
Baumjohann, W., Treumann, R. A.
core   +3 more sources

New Retarded Integral Inequalities with Applications

open access: yesJournal of Inequalities and Applications, 2008
Some new nonlinear integral inequalities of Gronwall type for retarded functions are established, which extend the results Lipovan (2003) and Pachpatte (2004).
S. K. Sen, Young-Ho Kim, Ravi P. Agarwal
doaj   +2 more sources

Lyapunov Functionals in Integral Equations

open access: yesAxioms, 2023
Lyapunov functions/functionals have found their footing in Volterra integro-differential equations. This is not the case for integral equations, and it is therefore further explored in this paper. In this manuscript, we utilize Lyapunov functionals combined with Laplace transform to qualitatively analyze the solutions of the integral equation In ...
Youssef N. Raffoul, Joseph Raffoul
openaire   +2 more sources

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