Results 41 to 50 of about 1,664 (89)

Crank–Nicolson Method for the Advection-Diffusion Equation Involving a Fractional Laplace Operator

open access: yesAbstract and Applied Analysis
MSC2020 Classification: 35R11; 35S15; 65M12.
Martin Nitiema   +2 more
doaj   +1 more source

A Fitted Linear Multistep Approach for Singularly Perturbed Parabolic‐Type Reaction–Diffusion Problems Using Shishkin Meshes

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2025, Issue 1, 2025.
This paper presents a class of singularly perturbed parabolic‐type reaction diffusion problems. Due to the presence of a small parameter ε, (0 < ε ≪ 1) as a diffusion coefficient, the proposed problem exhibits twin boundary layers in the neighborhood of the end points of the spatial domain near x = 0 and x = 1.
Amare Worku Demsie   +3 more
wiley   +1 more source

LDG schemes with second order implicit time discretization for a fractional sub-diffusion equation

open access: yesResults in Applied Mathematics, 2019
In this paper, we propose new local discontinuous Galerkin (LDG) schemes for solving a time fractional sub-diffusion equation. The new LDG schemes is constructed rely on the splitting of time fractional derivative and space derivative.
Can Li, Xiaorui Sun, Fengqun Zhao
doaj   +1 more source

A full space-time convergence order analysis of operator splittings for linear dissipative evolution equations

open access: yes, 2015
The Douglas--Rachford and Peaceman--Rachford splitting methods are common choices for temporal discretizations of evolution equations. In this paper we combine these methods with spatial discretizations fulfilling some easily verifiable criteria.
Hansen, Eskil, Henningsson, Erik
core   +1 more source

Testing reliability and validity of practitioner‐rated parental sensitivity: A novel tool for practice

open access: yesInfant Mental Health Journal: Infancy and Early Childhood, Volume 45, Issue 2, Page 234-246, March 2024.
Abstract Improving parental sensitivity is an important objective of interventions to support families. This study examined reliability and validity of parental sensitivity ratings using a novel package of an e‐learning tool and an interactive decision tree provided through a mobile application, called the OK! package.
Mirte L. Forrer   +3 more
wiley   +1 more source

On the Two-phase Fractional Stefan Problem

open access: yesAdvanced Nonlinear Studies, 2020
The classical Stefan problem is one of the most studied free boundary problems of evolution type. Recently, there has been interest in treating the corresponding free boundary problem with nonlocal diffusion.
del Teso Félix   +2 more
doaj   +1 more source

Efficient PML for the wave equation [PDF]

open access: yes, 2009
In the last decade, the perfectly matched layer (PML) approach has proved a flexible and accurate method for the simulation of waves in unbounded media. Most PML formulations, however, usually require wave equations stated in their standard second-order ...
Grote, Marcus J., Sim, Imbo
core  

Generation of subordinated holomorphic semigroups via Yosida's theorem

open access: yes, 2014
Using functional calculi theory, we obtain several estimates for $\|\psi(A)g(A)\|$, where $\psi$ is a Bernstein function, $g$ is a bounded completely monotone function and $-A$ is the generator of a holomorphic $C_0$-semigroup on a Banach space, bounded ...
Gomilko, Alexander, Tomilov, Yuri
core   +1 more source

An adaptive mesh method for time dependent singularly perturbed differential-difference equations

open access: yesNonlinear Engineering, 2019
In this paper, a time dependent singularly perturbed differential-difference convection-diffusion equation is solved numerically by using an adaptive grid method. Similar boundary value problems arise in computational neuroscience in determination of the
Pramod Chakravarthy P., Kumar Kamalesh
doaj   +1 more source

On the Convergence of Space-Time Discontinuous Galerkin Schemes for Scalar Conservation Laws

open access: yes, 2015
We prove convergence of a class of space-time discontinuous Galerkin schemes for scalar hyperbolic conservation laws. Convergence to the unique entropy solution is shown for all orders of polynomial approximation, provided strictly monotone flux ...
May, Georg, Zakerzadeh, Mohammad
core   +1 more source

Home - About - Disclaimer - Privacy