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The weak Galerkin (WG) finite element method is an effective and flexible general numerical technique for solving partial differential equations. It is a natural extension of the classic conforming finite element method for discontinuous…

数值分析 · 数学 2020-04-29 Xiu Ye , Shangyou Zhang

The weak Galerkin (WG) finite element method is an effective and flexible general numerical techniques for solving partial differential equations. A simple weak Galerkin finite element method is introduced for second order elliptic…

数值分析 · 数学 2020-04-24 Ahmed Al-Taweel , Xiaoshen Wang , Xiu Ye , Shangyou Zhang

This paper presents a novel Stabilizer-Free weak Galerkin (WG) finite element method for solving the Brinkman equations without the need for conventional stabilization techniques. The Brinkman model, which mathematically blends features of…

数值分析 · 数学 2025-07-28 Chunmei Wang , Shangyou Zhang

In this paper, we present and analyze a weak Galerkin finite element (WG) method for solving the symmetric hyperbolic systems. This method is highly flexible by allowing the use of discontinuous finite elements on element and its boundary…

数值分析 · 数学 2020-11-24 Tie Zhang , Shangyou Zhang

A discrete divergence-free weak Galerkin finite element method is developed for the Stokes equations based on a weak Galerkin (WG) method introduced in the reference [15]. Discrete divergence-free bases are constructed explicitly for the…

数值分析 · 数学 2016-03-01 Lin Mu , Junping Wang , Xiu Ye

A new weak Galerkin (WG) finite element method for solving the second-order elliptic problems on polygonal meshes by using polynomials of boundary continuity is introduced and analyzed. The WG method is utilizing weak functions and their…

数值分析 · 数学 2015-09-30 Qilong Zhai , Xiu Ye , Ruishu Wang , Ran Zhang

This paper introduces a numerical scheme for time harmonic Maxwell's equations by using weak Galerkin (WG) finite element methods. The WG finite element method is based on two operators: discrete weak curl and discrete weak gradient, with…

数值分析 · 数学 2013-12-10 Lin Mu , Junping Wang , Xiu Ye , Shangyou Zhang

A new weak Galerkin (WG) finite element method is introduced and analyzed in this paper for the biharmonic equation in its primary form. This method is highly robust and flexible in the element construction by using discontinuous piecewise…

数值分析 · 数学 2013-03-06 Lin Mu , Junping Wang , Xiu Ye

A systematic numerical study on weak Galerkin (WG) finite element method for second order linear parabolic problems is presented by allowing polynomial approximations with various degrees for each local element. Convergence of both…

数值分析 · 数学 2021-03-26 Bhupen Deka , Naresh Kumar

This article introduces a simple weak Galerkin (WG) finite element method for solving convection-diffusion-reaction equation. The proposed method offers significant flexibility by supporting discontinuous approximating functions on general…

数值分析 · 数学 2026-01-06 Chunmei Wang , Shangyou Zhang

The weak Galerkin (WG) finite element method has shown great potential in solving various type of partial differential equations. In this paper, we propose an arbitrary order locking-free WG method for solving linear elasticity problems,…

数值分析 · 数学 2023-11-23 Fuchang Huo , Ruishu Wang , Yanqiu Wang , Ran Zhang

In this paper, we propose a simple numerical algorithm based on the weak Galerkin (WG) finite element method for a class of fourth-order problems in fluorescence tomography (FT), eliminating the need for stabilizer terms required in…

数值分析 · 数学 2025-03-25 Chunmei Wang , Shangyou Zhang

This paper proposes and analyzes a class of new weak Galerkin (WG) finite element methods for 2- and 3-dimensional linear elasticity problems. The methods use discontinuous piecewise-polynomial approximations of degrees $k(\geq 0)$ for the…

数值分析 · 数学 2017-10-24 Gang Chen , Xiaoping Xie

This article introduces a weak Galerkin (WG) finite element method for quad-curl problems in three dimensions. It is proved that the proposed WG method is stable and accurate in an optimal order of error estimates for the exact solution in…

数值分析 · 数学 2022-11-01 Chunmei Wang , Junping Wang , Shangyou Zhang

In this paper, we study the stabilizer-free weak Galerkin methods on polytopal meshes for a class of second order elliptic boundary value problems of divergence form and with gradient nonlinearity in the principal coefficient. With certain…

数值分析 · 数学 2020-02-04 Xiu Ye , Shangyou Zhang , Yunrong Zhu

This paper introduces a weak Galerkin (WG) finite element method for the Stokes equations in the primary velocity-pressure formulation. This WG method is equipped with stable finite elements consisting of usual polynomials of degree $k\ge…

数值分析 · 数学 2013-02-13 Junping Wang , Xiu Ye

A weak Galerkin (WG) finite element method for solving the stationary Stokes equations in two- or three- dimensional spaces by using discontinuous piecewise polynomials is developed and analyzed. The variational form we considered is based…

数值分析 · 数学 2016-01-22 Ruishu Wang , Xiaoshen Wang , Qilong Zhai , Ran Zhang

In this paper, we propose a new stabilizer free and pressure robust WG method for the Stokes equations with super-convergence on polytopal mesh in the primary velocity-pressure formulation. Convergence rates with one order higher than the…

数值分析 · 数学 2020-11-04 Lin Mu , Xiu Ye , Shangyou Zhang

Recently, a new stabilizer free weak Galerkin method (SFWG) is proposed, which is easier to implement and more efficient. The main idea is that by letting $j\geq j_{0}$ for some $j_{0}$, where $j$ is the degree of the polynomials used to…

数值分析 · 数学 2020-04-20 Ahmed Al-Taweel , Xiaoshen Wang

This paper presents a new and efficient numerical algorithm for the biharmonic equation by using weak Galerkin (WG) finite element methods. The WG finite element scheme is based on a variational form of the biharmonic equation that is…

数值分析 · 数学 2013-09-24 Chunmei Wang , Junping Wang