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In this paper, a computational method is developed to find an approximate solution of the stochastic Volterra-Fredholm integral equation using the Walsh function approximation and its operational matrix. Moreover, convergence and error…

Numerical Analysis · Mathematics 2023-05-29 Prit Pritam Paikaray , Sanghamitra Beuria , Nigam Chandra Parida

We consider the problems of the numerical solution of the Cauchy problem for an evolutionary equation with memory when the kernel of the integral term is a difference one. The computational implementation is associated with the need to work…

Numerical Analysis · Mathematics 2021-10-29 Petr N. Vabishchevich

In this paper we discuss numerical methods and algorithms for the solution of NLTE stellar atmosphere problems involving expanding atmospheres, e.g., found in novae, supernovae and stellar winds. We show how a scheme of nested iterations…

Astrophysics · Physics 2011-06-02 P. H. Hauschildt , E. Baron

The solution of integro-differential equations have a major role in the fields of science and engineering. Different approaches both numerical and analytic are used to solve these type of equations. In this paper, the solution of fuzzy…

General Mathematics · Mathematics 2016-10-05 Saif Ullah , Latif Ahmad , Muhammad Farooq , Saleem Abdullah

Considered here is an efficient technique to compute approximate profiles of solitary wave solutions of fractional Korteweg-de Vries equations. The numerical method is based on a fixed-point iterative algorithm along with extrapolation…

Numerical Analysis · Mathematics 2017-04-28 A. Duran

We are concerned with the numerical solution of a class integro-differential equations, known as Neural Field Equations, which describe the large-scale dynamics of spatially structured networks of neurons. These equations have many…

Numerical Analysis · Mathematics 2015-09-01 Pedro M. Lima , Evelyn Buckwar

We consider the numerical approximation of variational problems with orthotropic growth, that is those where the integrand depends strongly on the coordinate directions with possibly different growth in each direction. Under realistic…

Numerical Analysis · Mathematics 2023-12-27 Anna Kh. Balci , Lars Diening , Abner J. Salgado

In the paper stochastic Volterra equations of nonscalar type in Hilbert space are studied. The aim of the paper is to provide some results on stochastic convolution and mild solutions to those Volterra equations. The motivation of the paper…

Probability · Mathematics 2007-05-23 Anna Karczewska

In this paper we present a treatment of hypersingular integral equations, which have relevant applications in many problems of wave dynamics, elasticity and fluid mechanics with mixed boundary conditions. The main goal of the present work…

Mathematical Physics · Physics 2007-05-23 G. Iovane , I. K. Lifanov , M. A. Sumbatyan

This work aims to bridge the gap between pure and applied research on scalar, linear Volterra equations by examining five major classes: integral and integro-differential equations with completely monotone kernels, such as linear…

Classical Analysis and ODEs · Mathematics 2026-01-09 David Darrow , George Stepaniants

An important challenge when coupling two different time dependent problems is to increase parallelization in time. We suggest a multirate Neumann-Neumann waveform relaxation algorithm to solve two heterogeneous coupled heat equations. In…

Numerical Analysis · Mathematics 2018-05-14 Azahar Monge , Philipp Birken

New exact solutions for the heat equation with a polynomial non-linearity and for the Fisher equation are found. An extended class of non-linear heat equations admitting solitary wave solutions is found. The generalization of the Fisher…

Mathematical Physics · Physics 2007-07-25 Anatoly G. Nikitin , Tetyana A. Barannyk

Volterra's integral equations with local and nonlocal loads represent the novel class of integral equations that have attracted considerable attention in recent years. These equations are a generalisation of the classic Volterra integral…

Numerical Analysis · Mathematics 2025-03-28 Vladislav Byankin , Aleksandr Tynda , Denis Sidorov , Aliona Dreglea

In this work, we consider a number of boundary-value problems for time-fractional heat equation with the recently introduced Caputo-Fabrizio derivative. Using the method of separation of variables, we prove a unique solvability of the…

Analysis of PDEs · Mathematics 2016-04-01 Nasser Al-Salti , Erkinjon Karimov , Sebti Kerbal

We study classical solutions (existence, uniqueness, and explicit solution operator) for homogeneous, linear, and semilinear abstract Volterra integral equations of wave type with almost sectorial operators. We use a functional calculus for…

Analysis of PDEs · Mathematics 2025-09-08 Joel E. Restrepo

A M\"untz spectral collocation method is implemented for solving weakly singular Volterra integro-differential equations (VDIEs) with proportional delays. After constructing the numerical scheme to seek an approximate solution, we derive…

Numerical Analysis · Mathematics 2024-10-07 Borui Zhao

In this paper, we study fractional order heat equation in higher space-time dimensions and offer specific role of heat flows in various fractional dimensions. We offer fractional solutions of the heat equations thus obtained, and examine…

General Physics · Physics 2017-04-14 Dimple Singh , Bhupendra Nath Tiwari , Nunu Yadav

We consider a certain simplification of the two-dimensional thermomicropolar fluids equations. We prove the existence of certain solutions to these equations depending on the regularity of the intial data. We investigate the uniqueness of…

Analysis of PDEs · Mathematics 2016-09-29 Łukaszewicz Grzegorz , Siemianowski Jakub

We introduce a concept of space-time holomorphic solutions of partial differential equations and construct a meromorphic solution of Navier-Stokes equations.

Analysis of PDEs · Mathematics 2013-09-03 Eugene Tsyganov

In this work, we investigate the one-dimensional heat equation within the framework of Stieltjes calculus. We first consider the equation associated with two fixed derivators and develop a constructive approach to establish the existence of…

Analysis of PDEs · Mathematics 2026-05-19 Clara Senín , F. Adrián F. Tojo