Results 51 to 60 of about 465 (189)

Computing Solution Operators of Boundary-value Problems for Some Linear Hyperbolic Systems of PDEs [PDF]

open access: yesLogical Methods in Computer Science, 2017
We discuss possibilities of application of Numerical Analysis methods to proving computability, in the sense of the TTE approach, of solution operators of boundary-value problems for systems of PDEs.
Svetlana Selivanova, Victor Selivanov
doaj   +1 more source

A Higher‐Order L1‐2‐3 Numerical Method for Time‐Fractional Volterra Integrodifferential Equations

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2026, Issue 1, 2026.
This paper investigates the numerical solution of time‐fractional Volterra integrodifferential equations that arise in many real‐life problems. A higher‐order numerical scheme is proposed using the L1‐2‐3 method for the time‐fractional derivative, Simpson’s 1/3 rule approximates the integral part, and the spatial derivatives are approximated using the ...
Aynalem Tafere Chekole   +4 more
wiley   +1 more source

Nonstandard Finite Difference Schemes with Application to Finance: Option Pricing [PDF]

open access: yes, 2010
2000 Mathematics Subject Classification: 65M06, 65M12.The paper is devoted to pricing options characterized by discontinuities in the initial conditions of the respective Black-Scholes partial differential equation. Finite difference schemes are examined
Milev, Mariyan, Tagliani, Aldo
core  

Viscous dissipative free convective flow from a vertical cone with heat generation/absorption, MHD in the presence of radiative non-uniform surface heat flux

open access: yes, 2020
The problem of combined effect of heat generation/absorption and thermal radiation on unsteady, laminar, natural convective movement with MHD, viscous dissipation over a vertical cone in the presence of variable heat flux is considered. The converted FDE’
KANNAN , Rayampettai Munisamy   +1 more
core   +1 more source

Modelling and analysis of fractal-fractional partial differential equations: Application to reaction-diffusion model

open access: yesAlexandria Engineering Journal, 2020
In this paper, an extension is paid to an idea of fractal and fractional derivatives which has been applied to a number of ordinary differential equations to model a system of partial differential equations.
Kolade M. Owolabi   +2 more
doaj   +1 more source

A Hybrid Fitted Mesh Numerical Scheme for Solving Singularly Perturbed Reaction–Diffusion Equation With Mixed Shifts

open access: yesJournal of Mathematics, Volume 2026, Issue 1, 2026.
This study develops a robust hybrid numerical scheme for a class of time‐dependent, singularly perturbed differential‐difference equations characterized by a small positive parameter multiplying the highest order derivative term and mixed spatial shifts (delay and advance) in the reaction terms.
Ababi H. Ejere   +4 more
wiley   +1 more source

Unconditional energy dissipation and error estimate of a relaxation scheme for generalized wave equations

open access: yesDemonstratio Mathematica
The law of energy dissipation is a crucial characteristic of generalized wave equations. The newly developed scalar auxiliary variable (SAV) method and its extended form, the generalized SAV (GSAV) approach, are widely used techniques for developing ...
Fu Yayun   +3 more
doaj   +1 more source

Making conditionally negative definite radial basis function interpolation well-conditioned by adding cardinal basis functions

open access: yesAin Shams Engineering Journal, 2018
A class of basis functions so called well-conditioned RBF (WRBFs) has been introduced. This basis has been manipulated by adding cardinal functions to the conditionally negative definite RBFs of order 1, such as Multiquadric functions 1+(∊r)2 (MQ) and ...
Saeed Kazem   +2 more
doaj   +1 more source

Stochastic Analysis of Pine Wilt Epidemic Model With Dynamically Consistent Approximation

open access: yesComplexity, Volume 2025, Issue 1, 2025.
The present study investigated the dynamics of the nonlinear stochastic pine wilt epidemic model. An extension of the stochastic to deterministic model is presented. Equilibria, positivity, boundedness, extinction, and disease persistence were studied rigorously.
Ali Raza   +6 more
wiley   +1 more source

Solutions of Nonlinear Parabolic PDEs: A Novel Technique Based on Galerkin‐Finite Difference Residual Corrections

open access: yesInternational Journal of Differential Equations, Volume 2025, Issue 1, 2025.
Numerical solutions for second‐order parabolic partial differential equations (PDEs), specifically the nonlinear heat equation, are investigated with a focus on analyzing residual corrections. Initially, the Galerkin weighted residual method is employed to rigorously formulate the heat equation and derive numerical solutions using third‐degree ...
Md. Shafiqul Islam   +3 more
wiley   +1 more source

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