A unified study of continuous and discontinuous Galerkin methods

Q Hong, F Wang, S Wu, J Xu - Science China Mathematics, 2019 - Springer
A unified study is presented in this paper for the design and analysis of different finite
element methods (FEMs), including conforming and nonconforming FEMs, mixed FEMs …

Randomized Neural Networks with Petrov–Galerkin Methods for Solving Linear Elasticity and Navier–Stokes Equations

Y Shang, F Wang - Journal of Engineering Mechanics, 2024 - ascelibrary.org
We develop randomized neural networks (RNNs) with Petrov–Galerkin (RNN-PG) methods
to solve linear elasticity and Navier–Stokes equations. RNN-PGs use the Petrov–Galerkin …

[HTML][HTML] An hp error analysis of a hybrid discontinuous mixed Galerkin method for linear viscoelasticity

S Meddahi - Computer Methods in Applied Mechanics and …, 2023 - Elsevier
We present a hybrid discontinuous Galerkin method for the velocity/stress formulation of
Zener's model in dynamic viscoelasticity. Our approach utilizes a spatial discretization that …

New low-order mixed finite element methods for linear elasticity

X Huang, C Zhang, Y Zhou, Y Zhu - Advances in Computational …, 2024 - Springer
New low-order H (div)-conforming finite elements for symmetric tensors are constructed in
arbitrary dimension. The space of shape functions is defined by enriching the symmetric …

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 …

Randomized Neural Networks with Petrov-Galerkin Methods for Solving Linear Elasticity Problems

Y Shang, F Wang - arXiv preprint arXiv:2308.03088, 2023 - arxiv.org
We develop the Randomized Neural Networks with Petrov-Galerkin Methods (RNN-PG
methods) to solve linear elasticity problems. RNN-PG methods use Petrov-Galerkin …

A mixed discontinuous Galerkin method for linear elasticity with strongly imposed symmetry

F Wang, S Wu, J Xu - Journal of Scientific Computing, 2020 - Springer
In this paper, we study a mixed discontinuous Galerkin (MDG) method to solve linear
elasticity problem with arbitrary order discontinuous finite element spaces in d-dimension …

A mixed discontinuous Galerkin method for a linear viscoelasticity problem with strongly imposed symmetry

S Meddahi, R Ruiz-Baier - SIAM Journal on Scientific Computing, 2023 - SIAM
We propose and rigorously analyze a semi-and fully discrete discontinuous Galerkin method
for an initial and boundary value problem describing inertial viscoelasticity in terms of elastic …

Stabilized Mixed Finite Element Methods for Linear Elasticity on Simplicial Grids in ℝn

L Chen, J Hu, X Huang - Computational Methods in Applied …, 2017 - degruyter.com
In this paper, we design two classes of stabilized mixed finite element methods for linear
elasticity on simplicial grids. In the first class of elements, we use 𝑯⁢(div, Ω; 𝕊)-P k and 𝑳 …

A mixed discontinuous Galerkin method with symmetric stress for Brinkman problem based on the velocity–pseudostress formulation

Y Qian, S Wu, F Wang - Computer Methods in Applied Mechanics and …, 2020 - Elsevier
The Brinkman equations can be regarded as a combination of the Stokes and Darcy
equations which model transitions between the fast flow in channels (governed by Stokes …