Results 11 to 20 of about 2,262,059 (281)

Second Order Integrability Conditions for Difference Equations: An Integrable Equation [PDF]

open access: yesLetters in Mathematical Physics, 2013
Integrability conditions for difference equations admitting a second order formal recursion operator are presented and the derivation of symmetries and canonical conservation laws is discussed. In the generic case, nonlocal conservation laws are also generated.
Mikhailov, AV, Xenitidis, P
openaire   +3 more sources

Volterra–Stieltjes integral equations and impulsive Volterra–Stieltjes integral equations

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2020
In this paper, we prove existence and uniqueness of solutions of Volterra–Stieltjes integral equations using the Henstock–Kurzweil integral. Also, we prove that these equations encompass impulsive Volterra–Stieltjes integral equations and prove the ...
Edgardo Alvarez   +3 more
doaj   +1 more source

Optimal Control Problem for Some Degenerate Variation Inequality: Attainability Problem

open access: yesJournal of Optimization, Differential Equations and Their Applications, 2018
We study an optimal control problem for degenerate elliptic variation inequality with degenerate weight function of potential type in the  so-called class of H-admissible solutions.
Nina V. Kasimova
doaj   +1 more source

Volterra integral equations and fractional calculus: Do neighbouring solutions intersect? [PDF]

open access: yes, 2012
This is the author's PDF version of an article published in Journal of Integral Equations and Applications. The definitive version is available at rmmc.asu.edu/jie/jie.html.This journal article considers the question of whether or not the solutions to ...
Diethelm, Kai, Ford, Neville J.
core   +1 more source

Generalized Ponce’s inequality

open access: yesJournal of Inequalities and Applications, 2021
We provide a generalization of a remarkable inequality by A. C. Ponce whose consequences are essential in several fields, such as a characterization of Sobolev spaces or nonlocal modelization.
Julio Muñoz
doaj   +1 more source

Localized boundary-domain singular integral equations based on harmonic parametrix for divergence-form elliptic PDEs with variable matrix coefficients [PDF]

open access: yes, 2013
This is the post-print version of the Article. The official publised version can be accessed from the links below. Copyright @ 2013 Springer BaselEmploying the localized integral potentials associated with the Laplace operator, the Dirichlet, Neumann and
Mikhailov, SE   +2 more
core   +1 more source

Analysis of direct segregated boundary-domain integral equations for variable-coefficient mixed bvps in exterior domains [PDF]

open access: yes, 2013
This is the post-print version of the Article. The official published version can be accessed from the link below - Copyright @ 2013 World Scientific Publishing.Direct segregated systems of boundary-domain integral equations are formulated for the mixed (
Mikhailov, SE   +2 more
core   +1 more source

On the Double of the Emad - Falih Transformation and Its Properties with Applications

open access: yesIbn Al-Haitham Journal for Pure and Applied Sciences, 2022
In this paper, we have generalized the concept of one dimensional Emad - Falih integral transform into two dimensional, namely, a double Emad - Falih integral transform.
Saed M. Turq, Emad A. Kuffi
doaj   +1 more source

Analysis of segregated boundary-domain integral equations for variable-coefficient problems with cracks [PDF]

open access: yes, 2010
This is the pre-print version of the article. The official published version can be obtained from the link below - Copyright @ 2011 Wiley-BlackwellSegregated direct boundary-domain integral equation (BDIE) systems associated with mixed, Dirichlet and ...
S.E. Mikhailov   +5 more
core   +1 more source

Analysis of some localized boundary-domain integral equations for transmission problems with variable coefficients [PDF]

open access: yes, 2011
This is the post-print version of the Article. The official published version can be found at the links below - Copyright @ 2011 Birkhäuser Boston.Some segregated systems of direct localized boundary-domain integral equations (LBDIEs) associated with ...
Mikhailov, SE   +4 more
core   +1 more source

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