Numerical methods for time-fractional evolution equations with nonsmooth data: a concise overview

B **, R Lazarov, Z Zhou - Computer Methods in Applied Mechanics and …, 2019 - Elsevier
Over the past few decades, there has been substantial interest in evolution equations that
involve a fractional-order derivative of order α∈(0, 1) in time, commonly known as …

Numerical analysis of nonlinear subdiffusion equations

B **, B Li, Z Zhou - SIAM Journal on Numerical Analysis, 2018 - SIAM
We present a general framework for the rigorous numerical analysis of time-fractional
nonlinear parabolic partial differential equations, with a fractional derivative of order α∈(0,1) …

[ΒΙΒΛΙΟ][B] Numerical treatment and analysis of time-fractional evolution equations

B **, Z Zhou - 2023 - Springer
The purpose of this book is to present a self-contained and up-to-date survey of numerical
treatment for the so-called time-fractional diffusion model and their mathematical analysis …

Subdiffusion with a time-dependent coefficient: analysis and numerical solution

B **, B Li, Z Zhou - Mathematics of Computation, 2019 - ams.org
In this work, a complete error analysis is presented for fully discrete solutions of the
subdiffusion equation with a time-dependent diffusion coefficient, obtained by the Galerkin …

A convergent evolving finite element algorithm for mean curvature flow of closed surfaces

B Kovács, B Li, C Lubich - Numerische Mathematik, 2019 - Springer
A proof of convergence is given for semi-and full discretizations of mean curvature flow of
closed two-dimensional surfaces. The numerical method proposed and studied here …

Discrete maximal regularity of time-step** schemes for fractional evolution equations

B **, B Li, Z Zhou - Numerische mathematik, 2018 - Springer
In this work, we establish the maximal ℓ^ p ℓ p-regularity for several time step** schemes
for a fractional evolution model, which involves a fractional derivative of order α ∈ (0, 2) …

Two methods addressing variable-exponent fractional initial and boundary value problems and Abel integral equation

X Zheng - arxiv preprint arxiv:2404.09421, 2024 - arxiv.org
Variable-exponent fractional models attract increasing attentions in various applications,
while the rigorous analysis is far from well developed. This work provides general tools to …

Local modification of subdiffusion by initial Fickian diffusion: multiscale modeling, analysis, and computation

X Zheng, Y Li, W Qiu - Multiscale Modeling & Simulation, 2024 - SIAM
We propose a local modification of the standard subdiffusion model by introducing the initial
Fickian diffusion, which results in a multiscale diffusion model. The developed model …

Higher-order linearly implicit full discretization of the Landau–Lifshitz–Gilbert equation

G Akrivis, M Feischl, B Kovács, C Lubich - Mathematics of Computation, 2021 - ams.org
For the Landau–Lifshitz–Gilbert (LLG) equation of micromagnetics we study linearly implicit
backward difference formula (BDF) time discretizations up to order $5 $ combined with …

A-stable time discretizations preserve maximal parabolic regularity

B Kovács, B Li, C Lubich - SIAM Journal on Numerical Analysis, 2016 - SIAM
It is shown that for a parabolic problem with maximal L^p-regularity (for 1<p<∞), the time
discretization by a linear multistep method or Runge--Kutta method has maximal ℓ^p …