Results 31 to 40 of about 138,198 (291)

Averaging of Higher-Order Parabolic Equations with Periodic Coefficients

open access: yesContemporary Mathematics. Fundamental Directions, 2021
In L2(Rd;Cn), we consider a wide class of matrix elliptic operators A of order 2p (where p2) with periodic rapidly oscillating coefficients (depending on x/). Here 0 is a small parameter. We study the behavior of the operator exponent e-A for 0 and small .
A. A. Miloslova, T. A. Suslina
openaire   +2 more sources

Accelerated parameter-uniform numerical method for singularly perturbed parabolic convection-diffusion problems with a large negative shift and integral boundary condition

open access: yesResults in Applied Mathematics, 2023
The singularly perturbed parabolic convection–diffusion equations with integral boundary conditions and a large negative shift are studied in this paper.
Wondimagegnehu Simon Hailu   +1 more
doaj   +1 more source

A Strongly A-Stable Time Integration Method for Solving the Nonlinear Reaction-Diffusion Equation

open access: yesAbstract and Applied Analysis, 2015
The semidiscrete ordinary differential equation (ODE) system resulting from compact higher-order finite difference spatial discretization of a nonlinear parabolic partial differential equation, for instance, the reaction-diffusion equation, is highly ...
Wenyuan Liao
doaj   +1 more source

Finite difference scheme for singularly perturbed reaction diffusion problem of partial delay differential equation with nonlocal boundary condition

open access: yesAdvances in Difference Equations, 2021
This paper investigates singularly perturbed parabolic partial differential equations with delay in space, and the right end plane is an integral boundary condition on a rectangular domain.
Sekar Elango   +6 more
doaj   +1 more source

Weak convergence of finite element approximations of linear stochastic evolution equations with additive noise II. Fully discrete schemes [PDF]

open access: yes, 2012
We present an abstract framework for analyzing the weak error of fully discrete approximation schemes for linear evolution equations driven by additive Gaussian noise.
A. Bouard de   +25 more
core   +2 more sources

A novel collocation technique for parabolic partial differential equations

open access: yesAin Shams Engineering Journal, 2022
The present study focuses on an accurate, convergent, stable and efficient method for solving the parabolic Fisher’s type equation with three different cases.
M.J. Huntul   +3 more
doaj   +1 more source

STUDY OF AMMONIA VOLATILIZATION IN SOME NORTHERN IRAQ SOILS [PDF]

open access: yesMesopotamia Journal of Agriculture, 2010
Ammonia volatilization phenomena from urea fertilizer was studied by using three different textures of calcareous soil(loamy sand ,clay loamand clay) from Mosul city – northern Iraq, classified as calciorthids .Urea was added at three rates (100,200 and ...
M. Alobaidi, R. Al-Hamdany, M. Saaid
doaj   +1 more source

On the numerical solution of higher order nonlinear parabolic equations [PDF]

open access: yesComputing, 1968
This paper deals with the numerical approximation of weak solutions of the first initial, boundary value problem for the higher order, nonlinear parabolic equation $$\sum\limits_{|\alpha | , |\beta | \leqq p} {D^\alpha (a_{\alpha \beta } (x,t)) \leqq D^\beta u - \partial u/
Allgower, E., Guenther, R.
openaire   +1 more source

Solving linear parabolic rough partial differential equations [PDF]

open access: yes, 2018
We study linear rough partial differential equations in the setting of [Friz and Hairer, Springer, 2014, Chapter 12]. More precisely, we consider a linear parabolic partial differential equation driven by a deterministic rough path $\mathbf{W}$ of H ...
Bayer, Christian   +4 more
core   +3 more sources

Thermal analysis characterisation of solar-powered ship using Oldroyd hybrid nanofluids in parabolic trough solar collector: An optimal thermal application

open access: yesNanotechnology Reviews, 2022
The mathematical modeling of hybrid nanofluid flow and heat transfer with entropy generation toward parabolic trough surface collector (PTSC) inside the solar-powered ship (SPS) is performed.
Shahzad Faisal   +10 more
doaj   +1 more source

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