Results 71 to 80 of about 3,838,910 (187)

Existence results for abstract partial neutral integro-differential equation with unbounded delay

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2009
In this paper we study the existence and regularity of mild solutions for a class of abstract partial neutral integro-differential equations with unbounded delay.
Eduardo Hernandez   +2 more
doaj   +1 more source

Predictive evolutionary genomics: principles, validation, and practice

open access: yesNew Phytologist, Volume 252, Issue 1, Page 36-48, October 2026.
Summary Climate change and habitat loss are driving rapid evolutionary responses in populations world‐wide, which creates an urgent need for evolutionary forecasting in conservation and agriculture. Such forecasting can be categorized into three time scales: trait‐based models that use multivariate quantitative genetic equations to project correlated ...
Daniel Ortiz‐Barrientos   +5 more
wiley   +1 more source

Solitary wave solutions of nonlinear integro-partial differential equations of \((2 + 1)\)-dimensional and its models

open access: yesInternational Journal of Differential Equations, 2022
The findings indicate an application of a new method of expansion of the forms Z′/Z and 1/Z to determine the solutions for wave of the solitary nature in the 2+1-dimensional modified form for nonlinear integro-partial differential equations. By using this strategy, we acquired solutions of wave which has a solitary nature that have been solved for ...
Daba Meshesha Gusu, Shelama Diro
openaire   +2 more sources

An Analytical and Approximate Solution for Nonlinear Volterra Partial Integro-Differential Equations with a Weakly Singular Kernel Using the Fractional Differential Transform Method

open access: yesInternational Journal of Differential Equations, 2018
An analytical-approximate method is proposed for a type of nonlinear Volterra partial integro-differential equations with a weakly singular kernel. This method is based on the fractional differential transform method (FDTM).
Rezvan Ghoochani-Shirvan   +2 more
doaj   +1 more source

Solution of nonlinear problems by a new analytical technique using Daftardar-Gejji and Jafari polynomials

open access: yesAdvances in Mechanical Engineering, 2019
This article shows the solution of nonlinear differential equations by a new analytical technique called modified optimal homotopy perturbation method. Daftardar-Gejji and Jafari polynomials are used in the proposed method for the expansion of nonlinear ...
Liaqat Ali   +3 more
doaj   +1 more source

Modification of the Differential Transform Method With Search Direction Along the Spatial Axis

open access: yesInternational Journal of Differential Equations
This paper presents a modification of the Differential Transform Method (ModDTM) formulated so that the search direction of the solution is along a spatial axis (x). It is shown that the method is applicable to a wide spectrum of 1+1 partial differential
Helena Nayar, Patrick Azere Phiri
doaj   +1 more source

On the optimal control of systems governed by quasilinear integro-partial differential equations of parabolic type

open access: yesJournal of Mathematical Analysis and Applications, 1977
AbstractRecently, M. N. Oğuztöreli presented certain results on the existence and uniqueness of solutions of systems governed by a linear integro-partial differential equation of parabolic type with delayed arguments. Since his results admit only smooth coefficients, they could not be used directly in the study of the optimal control problems with ...
Teo, K.L, Ahmed, N.U
openaire   +1 more source

Remarks on a New Variable-Coefficient Integro-Differential Equation via Inverse Operators

open access: yesFractal and Fractional
In this paper, we investigate functional inverse operators associated with a class of fractional integro-differential equations. We further explore the existence, uniqueness, and stability of solutions to a new integro-differential equation featuring ...
Chenkuan Li, Nate Fingas, Ying Ying Ou
doaj   +1 more source

Exact solutions for nonlinear integro-partial differential equations using the generalized Kudryashov method

open access: yesJournal of the Egyptian Mathematical Society, 2017
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Gepreel, Khaled A.   +2 more
openaire   +2 more sources

Solution of High-Order Linear Fredholm Integro-Differential Equations with Piecewise Intervals

open access: yes, 2010
In this study, a practical matrix method is presented to find an approximate solution for high-order linear Fredholm integro-differential equations with piecewise intervals under the initial boundary conditions in terms of Taylor polynomials.
Baykus, Nurcan   +4 more
core   +1 more source

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