[图书][B] Finite elements I: Approximation and interpolation

A Ern, JL Guermond - 2021 - books.google.com
This book is the first volume of a three-part textbook suitable for graduate coursework,
professional engineering and academic research. It is also appropriate for graduate flipped …

[图书][B] Finite elements II

A Ern, JL Guermond - 2021 - Springer
The mathematization of all sciences, the fading of traditional scientific boundaries, the
impact of computer technology, the growing importance of computer modelling and the …

Equivalence of local- and global-best approximations, a simple stable local commuting projector, and optimal hp approximation estimates in H(div)

A Ern, T Gudi, I Smears… - IMA Journal of Numerical …, 2022 - academic.oup.com
Given an arbitrary function in, we show that the error attained by the global-best
approximation by-conforming piecewise polynomial Raviart–Thomas–Nédélec elements …

[HTML][HTML] A pressure-robust Discrete de Rham scheme for the Navier–Stokes equations

DA Di Pietro, J Droniou, JJ Qian - Computer Methods in Applied Mechanics …, 2024 - Elsevier
In this work we design and analyse a Discrete de Rham (DDR) method for the
incompressible Navier–Stokes equations. Our focus is, more specifically, on the SDDR …

An extended Galerkin analysis in finite element exterior calculus

Q Hong, Y Li, J Xu - Mathematics of Computation, 2022 - ams.org
For the Hodge–Laplace equation in finite element exterior calculus, we introduce several
families of discontinuous Galerkin methods in the extended Galerkin framework. For …

An optimization-based method for sign-changing elliptic PDEs

A Abdulle, S Lemaire - ESAIM: Mathematical Modelling and …, 2024 - esaim-m2an.org
We study the numerical approximation of sign-shifting problems of elliptic type. We fully
analyze and assess the method briefly introduced in [A. Abdulle, ME Huber and S. Lemaire …

Variational eigenvalue approximation of non-coercive operators with application to mixed formulations in elasticity

S Meddahi - SeMA Journal, 2022 - Springer
We present an abstract framework for the eigenvalue approximation of a class of non-
coercive operators. We provide sufficient conditions to guarantee the spectral correctness of …

An efficient flux‐variable approximation scheme for Darcy's flow

RB Adhikari, I Kim, YJ Lee… - Numerical Methods for …, 2024 - Wiley Online Library
We present an efficient numerical method to approximate the flux variable for the Darcy flow
model. An important feature of our new method is that the approximate solution for the flux …

Local finite element approximation of Sobolev differential forms

E Gawlik, MJ Holst, MW Licht - ESAIM: Mathematical Modelling …, 2021 - esaim-m2an.org
We address fundamental aspects in the approximation theory of vector-valued finite element
methods, using finite element exterior calculus as a unifying framework. We generalize the …

Smoothed projections over manifolds in finite element exterior calculus

MW Licht - arXiv preprint arXiv:2310.14276, 2023 - arxiv.org
We develop commuting finite element projections over smooth Riemannian manifolds. This
extension of finite element exterior calculus establishes the stability and convergence of …