Results 71 to 80 of about 3,163,886 (311)

Nonlinear Volterra Integrodifferential Equations

open access: yesJournal of Mathematical Analysis and Applications, 1994
This is a continuation of the authors' earlier paper [J. Math. Anal. Appl. 139, No. 1, 78-109 (1989; Zbl 0681.45010)]. Consider the semilinear Volterra integro-differential equation \[ u'(t) + Au(t) = \int^ t_ 0 a(t,s)g \bigl( s,u(s) \bigr) ds + f \bigl( t,u(t) \bigr), \quad t > 0, \] with \(u(0) = u_ 0\), where \(-A\) generates an analytic semigroup ...
Heard, M.L., Rankin, S.M.
openaire   +2 more sources

Stochastic Volterra integral equations and a class of first-order stochastic partial differential equations [PDF]

open access: yesStochastics, 2019
We investigate stochastic Volterra equations and their limiting laws. The stochastic Volterra equations we consider are driven by a Hilbert space valued Lévy noise and integration kernels may have non-linear dependence on the current state of the process.
F. Benth, Nils Detering, Paul Krühner
semanticscholar   +1 more source

A practical guide to characterising ecological coexistence

open access: yesBiological Reviews, EarlyView.
ABSTRACT Coexistence is simultaneously one of the most fundamental concepts of ecology, and one of the most difficult to define. A particular challenge is that, despite a well‐developed body of research, several different schools of thought have developed over the past century, leading to multiple independent, and largely isolated, branches of ...
Adam T. Clark   +9 more
wiley   +1 more source

Convergence and data dependence results of the nonlinear Volterra integral equation by the Picard's three step iteration

open access: yesAIMS Mathematics
Picard's three step iteration algorithm was one of the iteration algorithms that was recently shown to be faster than some other iterative algorithms in the existing literature.
Lale Cona
doaj   +1 more source

Cordial Volterra Integral Equations and Singular Fractional Integro-Differential Equations in Spaces of Analytic Functions∗

open access: yesMathematical Modelling and Analysis, 2017
We study general cordial Volterra integral equations of the second kind and certain singular fractional integro-differential equation in spaces of analytic functions.
Urve Kangro
doaj   +1 more source

Stochastic Volterra equations driven by cylindrical Wiener process

open access: yes, 2007
In this paper, stochastic Volterra equations driven by cylindrical Wiener process in Hilbert space are investigated. Sufficient conditions for existence of strong solutions are given.
Karczewska, Anna, Lizama, Carlos
core   +2 more sources

A complex network perspective on brain disease

open access: yesBiological Reviews, EarlyView.
ABSTRACT If brain anatomy and dynamics have a complex network structure as it has become standard to posit, it is reasonable to assume that such a structure should play a key role not only in brain function but also in brain dysfunction. However, exactly how network structure is implicated in brain damage and whether at least some pathologies can be ...
David Papo, Javier M. Buldú
wiley   +1 more source

Boundedness and Asymptotic Stability for the Solution of Homogeneous Volterra Discrete Equations

open access: yesDiscrete Dynamics in Nature and Society, 2018
We consider homogeneous linear Volterra Discrete Equations and we study the asymptotic behaviour of their solutions under hypothesis on the sign of the coefficients and of the first- and second-order differences.
E. Messina, A. Vecchio
doaj   +1 more source

An approach of extrapolation methods for the solution of nonlinear Volterra–Fredholm integral equations of the second kind [PDF]

open access: yesIranian Journal of Numerical Analysis and Optimization
This study presents the process of using extrapolation methods to solve the nonlinear Volterra–Fredholm integral equations of the second kind. To do this, by approximating the integral terms contained in equations by a quadrature rule, the nonlinear ...
H. Safdari   +2 more
doaj   +1 more source

Numerical Solutions of ODEs using Volterra Series [PDF]

open access: yes, 2006
We propose a numerical approach for solving systems of nonautonomous ordinary di®erential equations under suitable assumptions. This approach is based on expansion of the solutions by Volterra series and allows to estimate the accuracy of the ...
Kirov, Nikolay, Krastanov, Michail
core  

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