Results 21 to 30 of about 346,955 (252)

A Novel Collocation Method for Numerical Solution of Hypersingular Integral Equation with Singular Right-Hand Function

open access: yesAdvances in Mathematical Physics, 2023
In this study, the Fredholm hypersingular integral equation of the first kind with a singular right-hand function on the interval −1,1 is solved. The discontinuous solution on the domain −1,1 is approximated by a piecewise polynomial, and a collocation ...
M. R. Elahi   +3 more
doaj   +1 more source

A positive fixed point theorem with applications to systems of Hammerstein integral equations [PDF]

open access: yes, 2014
We present new criteria on the existence of fixed points that combine some monotonicity assumptions with the classical fixed point index theory. As an illustrative application, we use our theoretical results to prove the existence of positive solutions ...
Cabada, Alberto   +2 more
core   +3 more sources

A class of equations with peakon and pulson solutions (with an Appendix by Harry Braden and John Byatt-Smith) [PDF]

open access: yes, 2004
We consider a family of integro-differential equations depending upon a parameter $b$ as well as a symmetric integral kernel $g(x)$. When $b=2$ and $g$ is the peakon kernel (i.e. $g(x)=\exp(-|x|)$ up to rescaling) the dispersionless Camassa-Holm equation
Holm, Darryl D., Hone, Andrew N. W.
core   +2 more sources

Visco-potential free-surface flows and long wave modelling [PDF]

open access: yes, 2008
In a recent study [DutykhDias2007] we presented a novel visco-potential free surface flows formulation. The governing equations contain local and nonlocal dissipative terms.
Bona   +37 more
core   +4 more sources

Positive Solutions for Coupled Nonlinear Fractional Differential Equations

open access: yesJournal of Applied Mathematics, 2014
We consider the existence of positive solutions for a coupled system of nonlinear fractional differential equations with integral boundary values. Assume the nonlinear term is superlinear in one equation and sublinear in the other equation.
Wenning Liu, Xingjie Yan, Wei Qi
doaj   +1 more source

A New Higher-Order Iterative Scheme for the Solutions of Nonlinear Systems

open access: yesMathematics, 2020
Many real-life problems can be reduced to scalar and vectorial nonlinear equations by using mathematical modeling. In this paper, we introduce a new iterative family of the sixth-order for a system of nonlinear equations. In addition, we present analyses
Ramandeep Behl, Ioannis K. Argyros
doaj   +1 more source

Numerical approximations for population growth model by Rational Chebyshev and Hermite Functions collocation approach: A comparison

open access: yes, 2010
This paper aims to compare rational Chebyshev (RC) and Hermite functions (HF) collocation approach to solve the Volterra's model for population growth of a species within a closed system.
Al-Khaled   +42 more
core   +1 more source

Nonlinear Integral Equations and Their Solutions [PDF]

open access: yes, 2016
We shall investigate nonlinear integral equations and their properties and solutions. Proofs and examples for the existence of unique solutions to nonlinear integral equations are provided. Some other areas explored are properties of solutions to systems
Richards, Caleb
core   +1 more source

Field-theoretic methods

open access: yes, 2007
Many complex systems are characterized by intriguing spatio-temporal structures. Their mathematical description relies on the analysis of appropriate correlation functions.
Tauber, Uwe C.
core   +2 more sources

On the complete integrability and linearization of nonlinear ordinary differential equations - Part II: Third order equations [PDF]

open access: yes, 2005
We introduce a method for finding general solutions of third-order nonlinear differential equations by extending the modified Prelle-Singer method. We describe a procedure to deduce all the integrals of motion associated with the given equation so that ...
Chandrasekar, V. K.   +2 more
core   +2 more sources

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