Results 31 to 40 of about 3,812 (235)

Numerical solution of a malignant invasion model using some finite difference methods

open access: yesDemonstratio Mathematica, 2023
In this article, one standard and four nonstandard finite difference methods are used to solve a cross-diffusion malignant invasion model. The model consists of a system of nonlinear coupled partial differential equations (PDEs) subject to specified ...
Appadu Appanah Rao   +1 more
doaj   +1 more source

Faber-Schauder Wavelet Sparse Grid Approach for Option Pricing with Transactions Cost

open access: yesAbstract and Applied Analysis, 2014
Transforming the nonlinear Black-Scholes equation into the diffusion PDE by introducing the log transform of S and (T−t)→τ can provide the most stable platform within which option prices can be evaluated.
Shu-Li Mei
doaj   +1 more source

On the C ∞ Wave-Front Set of Solutions of First-Order Nonlinear PDE's [PDF]

open access: yesProceedings of the American Mathematical Society, 1995
Let Ω ⊂
openaire   +1 more source

Differential games and nonlinear first order PDE on bounded domains

open access: yesManuscripta Mathematica, 1984
This paper studies the fully nonlinear first order partial differential equation \(u+H(x,Du)=0\) in a bounded domain \(\theta\) with \(u=g\) on the boundary of \(\theta\) using the connection between viscosity solutions and differential games or control theory. Here the control problem involves the exit time from the domain.
Evans, L.C., Ishii, H.
openaire   +1 more source

Formal solutions of nonlinear first order totally characteristic type PDE with irregular singularity [PDF]

open access: yesAnnales de l'Institut Fourier, 2001
In this paper, we calculate the formal Gevrey index of the formal solution of a class of nonlinear first order totally characteristic type partial differential equations with irregular singularity in the space variable. We also prove that our index is the best possible one in a generic case.
Chen, Hua   +2 more
openaire   +1 more source

A Study on Effects of Thermal Radiative Dissipative MHD Non-Newtonian Nanofluid above an Elongating Sheet in Porous Medium [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2023
In this article, the ways where thermal radiation, besides other sources of heat, influence the magnetohydrodynamic stream of a Jeffery nanofluid across a widening sheet is investigated.
Modalavalasa Harish   +3 more
doaj   +1 more source

A New Fourth-Order Predictor–Corrector Numerical Scheme for Heat Transfer by Darcy–Forchheimer Flow of Micropolar Fluid with Homogeneous–Heterogeneous Reactions

open access: yesApplied Sciences, 2022
This paper proposes a numerical scheme for solving linear and nonlinear differential equations obtained from the mathematical modeling of a flow phenomenon. The scheme is constructed on two grid points.
Yasir Nawaz   +2 more
doaj   +1 more source

Gevrey micro-regularity for solutions to first order nonlinear PDE

open access: yesJournal of Differential Equations, 2009
In this interesting paper, the authors study the microlocal Gevrey regularity of \(C^2\) solutions to a first-order nonlinear PDE. More precisely, let \(f=f(x,t,\zeta_0,\zeta)\) be Gevrey of order \(s>1\) and holomorphic in the variables \((\zeta_0,\zeta)\). Consider a solution \(u\in C^2\) to \(u_t=f(x,t,u,u_x)\).
Barostichi, R.F., Petronilho, G.
openaire   +2 more sources

The Space–Time Kernel-Based Numerical Method for Burgers’ Equations

open access: yesMathematics, 2018
It is well known that major error occur in the time integration instead of the spatial approximation. In this work, anisotropic kernels are used for temporal as well as spatial approximation to construct a numerical scheme for solving nonlinear Burgers ...
Marjan Uddin, Hazrat Ali
doaj   +1 more source

Numerical solution for the electrically conducting hybrid nanofluid flow between two parallel rotating surfaces subject to thermal radiation

open access: yesAIP Advances, 2023
In the current analysis, the steady and incompressible magnetohydrodynamics hybrid nanofluid (hnf) flow across two spinning permeable surfaces is studied. The hybrid nanoliquid has been examined under the additional effects of heat source, magnetic field,
F. M. Allehiany   +4 more
doaj   +1 more source

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