Hybrid high-order and weak Galerkin methods for the biharmonic problem

Z Dong, A Ern - SIAM Journal on Numerical Analysis, 2022 - SIAM
We devise and analyze two hybrid high-order (HHO) methods for the numerical
approximation of the biharmonic problem. The methods support polyhedral meshes, rely on …

Four-order superconvergent CDG finite elements for the biharmonic equation on triangular meshes

X Ye, S Zhang - Journal of Computational and Applied Mathematics, 2024 - Elsevier
In a conforming discontinuous Galerkin (CDG) finite element method, discontinuous P k
polynomials are employed. To connect discontinuous functions, the inter-element traces,{uh} …

[HTML][HTML] A robust WG finite element method for convection–diffusion–reaction equations

G Chen, M Feng, X Xie - Journal of Computational and Applied …, 2017 - Elsevier
This paper proposes and analyzes a weak Galerkin (WG) finite element method for 2-and 3-
dimensional convection–diffusion–reaction problems on conforming or nonconforming …

Four-order superconvergent weak Galerkin methods for the biharmonic equation on triangular meshes

X Ye, S Zhang - Communications on Applied Mathematics and …, 2023 - Springer
A stabilizer-free weak Galerkin (SFWG) finite element method was introduced and analyzed
in Ye and Zhang (SIAM J. Numer. Anal. 58: 2572–2588, 2020) for the biharmonic equation …

Weak Galerkin finite element methods for a fourth order parabolic equation

S Chai, Y Zou, C Zhou, W Zhao - Numerical Methods for Partial …, 2019 - Wiley Online Library
This paper is devoted to a newly developed weak Galerkin finite element method with the
stabilization term for a linear fourth order parabolic equation, where weakly defined …

An accurate, robust, and efficient weak Galerkin finite element scheme with graded meshes for the time-fractional quasi-linear diffusion equation

J Zhou, D Xu, W Qiu, L Qiao - Computers & Mathematics with Applications, 2022 - Elsevier
A time-fractional quasi-linear diffusion equation with a Caputo time derivative of order 0< α<
1 is considered. The weak Galerkin finite element method is used for the space …

C 0-hybrid high-order methods for biharmonic problems

Z Dong, A Ern - IMA Journal of Numerical Analysis, 2024 - academic.oup.com
We devise and analyze-conforming hybrid high-order (HHO) methods to approximate
biharmonic problems with either clamped or simply supported boundary conditions …

A mixed virtual element method for the two-dimensional Navier-Stokes equations in stream-function formulation

X Zhang, M Feng - Computers & Mathematics with Applications, 2024 - Elsevier
This work presents the formulation and analysis of a H 1− conforming mixed virtual element
method (VEM) for the two-dimensional stationary incompressible Navier-Stokes (NS) …

Hermite Finite Element Method for One-Dimensional Fourth-Order Boundary Value Problems

B Wu, J Qiu - Mathematics, 2024 - mdpi.com
One-dimensional fourth-order boundary value problems (BVPs) play a critical role in
engineering applications, particularly in the analysis of beams. Current numerical …

[PDF][PDF] A C0-weak Galerkin finite element method for the two-dimensional Navier-Stokes equations in stream-function formulation

B Zhang, Y Yang, M Feng - Journal of Computational …, 2020 - doc.global-sci.org
We propose and analyze a C0-weak Galerkin (WG) finite element method for the numerical
solution of the Navier-Stokes equations governing 2D stationary incompressible flows …