Results 41 to 50 of about 5,238,146 (379)

On new evolution of Ri’s result via w-distances and the study on the solution for nonlinear integral equations and fractional differential equations

open access: yesAdvances in Difference Equations, 2018
The aim of this work is to establish a new fixed point theorem for generalized contraction mappings with respect to w-distances in complete metric spaces. An illustrative example is provided to advocate the usability of our results.
Hassen Aydi   +2 more
doaj   +1 more source

An Integral Equation Involving Legendre Functions [PDF]

open access: yes, 1964
Rodrigues’s formula can be applied also to (1.1) and (1.3) but here the situation is slightly more involved in that the integrals with respect to σ^2 are of fractional order and their inversion requires the knowledge of differentiation and integration of
Erdélyi, A.
core   +1 more source

On Solutions of a Nonlinear Erdélyi-Kober Integral Equation

open access: yesAbstract and Applied Analysis, 2014
We conduct some investigations concerning the solvability of a nonlinear integral equation of Erdélyi-Kober type. To facilitate our study we will first consider a nonlinear integral equation of Volterra-Stieltjes type.
Nurgali K. Ashirbayev   +2 more
doaj   +1 more source

Shear viscosity in $\phi^4$ theory from an extended ladder resummation

open access: yes, 2000
We study shear viscosity in weakly coupled hot $\phi^4$ theory using the CTP formalism . We show that the viscosity can be obtained as the integral of a three-point function.
A. Hosoya   +29 more
core   +3 more sources

Research on a High Precision Reservoir Flood Regulating Calculation Based on Solving Integral Equation

open access: yesRenmin Zhujiang, 2020
Reservoir flood regulating calculation can be divided into two methods: solving ordinary differential equation and solving integral equation, of which the method of solving integral equation is more widely used in engineering.
ZHOU Bin
doaj  

An approximation method for the solution of nonlinear integral equations [PDF]

open access: yes, 2006
A Chebyshev collocation method has been presented to solve nonlinear integral equations in terms of Chebyshev polynomials. This method transforms the integral equation to a matrix equation which corresponds to a system of nonlinear algebraic equations ...
Akyuz-Dascioglu, A, Yaslan, HC
core   +3 more sources

On global attractivity of solutions of a functional-integral equation

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2007
We prove an existence theorem for a quadratic functional-integral equation of mixed type. The functional-integral equation studied below contains as special cases numerous integral equations encountered in nonlinear analysis.
Mohamed Darwish
doaj   +1 more source

The unpredictably eruptive dynamics of spruce budworm populations in eastern Canada

open access: yesPopulation Ecology, EarlyView.
We examine historical population data for spruce budworm from several locations through the period 1930–1997, and use density‐dependent recruitment curves to test whether the pattern of population growth over time is more consistent with Royama's (1984; Ecological Monographs 54:429–462) linear R(t) model of harmonic oscillation at Green River New ...
Barry J. Cooke, Jacques Régnière
wiley   +1 more source

On a class of integral equations [PDF]

open access: yesProceedings of the American Mathematical Society, 1952
where g and h are given and f is unknown. The number a may be finite or infinite. The first integral is taken in the sense of a Cauchy principal value. For h(x, t) 8O, this reduces to a well known integral equation of airfoil theory and has been treated extensively, mainly by Fourier methods, cf. [2 ]. E. Reissner [3 ] has applied this method to (1) in
openaire   +2 more sources

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