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相关论文: A Numerical Study on the Weak Galerkin Method for …

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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 simplified weak Galerkin (WG) finite element method for solving biharmonic equations avoiding the use of traditional stabilizers. The proposed WG method supports both convex and non-convex polytopal elements in finite…

数值分析 · 数学 2024-12-17 Chunmei Wang

A new weak Galerkin (WG) method is introduced and analyzed for the second order elliptic equation formulated as a system of two first order linear equations. This method, called WG-MFEM, is designed by using discontinuous piecewise…

数值分析 · 数学 2013-06-27 Junping Wang , Xiu Ye

We introduce a new numerical method for solving time-harmonic Maxwell's equations via the modified weak Galerkin technique. The inter-element functions of the weak Galerkin finite elements are replaced by the average of the two…

数值分析 · 数学 2023-08-08 Chunmei Wang , Xiu Ye , Shangyou Zhang

This article proposes and analyzes the generalized weak Galerkin ({\rm g}WG) finite element method for the second order elliptic problem. A generalized discrete weak gradient operator is introduced in the weak Galerkin framework so that the…

数值分析 · 数学 2023-05-16 Dan Li , Chunmei Wang , Junping Wang , Xiu Ye

This paper introduces the application of the weak Galerkin (WG) finite element method to solve the Steklov eigenvalue problem, focusing on obtaining lower bounds of the eigenvalues. The noncomforming finite element space of the weak…

数值分析 · 数学 2024-05-13 Shusheng Li , Hehu Xie , Qilong Zhai

The generalized weak Galerkin (gWG) finite element method is proposed and analyzed for the biharmonic equation. A new generalized discrete weak second order partial derivative is introduced in the gWG scheme to allow arbitrary combinations…

数值分析 · 数学 2023-02-14 Dan Li , Chunmei Wang , Junping Wang

This article is devoted to computing the eigenvalue of the Laplace eigenvalue problem by the weak Galerkin (WG) finite element method with emphasis on obtaining lower bounds. The WG method is on the use of weak functions and their weak…

数值分析 · 数学 2015-08-24 Hehu Xie , Qilong Zhai , Ran Zhang

This paper proposes and analyzes a class of weak Galerkin (WG) finite element methods for stationary natural convection problems in two and three dimensions. We use piecewise polynomials of degrees k, k-1, and k(k>=1) for the velocity,…

数值分析 · 数学 2019-03-25 Han Yihui , Xie Xiaoping

In this paper a hybridized weak Galerkin (HWG) finite element method for solving the Stokes equations in the primary velocity-pressure formulation is introduced. The WG method uses weak functions and their weak derivatives which are defined…

数值分析 · 数学 2023-07-19 Qilong Zhai , Ran Zhang , Xiaoshen Wang

The weak Galerkin (WG) methods have been introduced in the references [11, 16] for solving the biharmonic equation. The purpose of this paper is to develop an algorithm to implement the WG methods effectively. This can be achieved by…

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

A newly developed weak Galerkin method is proposed to solve parabolic equations. This method allows the usage of totally discontinuous functions in approximation space and preserves the energy conservation law. Both continuous and…

数值分析 · 数学 2013-03-18 Qiaoluan H. Li , Junping Wang

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 paper presents an arbitrary order locking-free numerical scheme for linear elasticity on general polygonal/polyhedral partitions by using weak Galerkin (WG) finite element methods. Like other WG methods, the key idea for the linear…

数值分析 · 数学 2015-08-18 Chunmei Wang , Junping Wang , Ruishu Wang , Ran Zhang

We propose a weak Galerkin(WG) finite element method for solving the one-dimensional Burgers' equation. Based on a new weak variational form, both semi-discrete and fully-discrete WG finite element schemes are established and analyzed. We…

数值分析 · 数学 2016-07-20 Yanli Chen , Tie Zhang

This paper introduces a new weak Galerkin (WG) finite element method for second order elliptic equations on polytopal meshes. This method, called WG-FEM, is designed by using a discrete weak gradient operator applied to discontinuous…

数值分析 · 数学 2012-08-20 Lin Mu , Junping Wang , Xiu Ye

This paper presents an efficient weak Galerkin (WG) finite element method with reduced stabilizers for solving the time-harmonic Maxwell equations on both convex and non-convex polyhedral meshes. By employing bubble functions as a critical…

数值分析 · 数学 2024-10-29 Chunmei Wang , Shangyou Zhang

This paper develops a weak Galerkin (WG) finite element method of arbitrary order for the steady incompressible Magnetohydrodynamics equations. The WG scheme uses piecewise polynomials of degrees $k(k\geq 1),k,k-1$, and $k-1$ respectively…

数值分析 · 数学 2023-10-06 Min Zhang , Tong Zhang , Xiaoping Xie

This paper presents a hybridized formulation for the weak Galerkin mixed finite element method (WG-MFEM) which was introduced and analyzed for second order elliptic equations. The WG-MFEM method was designed by using discontinuous piecewise…

数值分析 · 数学 2015-08-25 Lin Mu , Junping Wang , Xiu Ye

A new weak Galerkin finite element method, called generalized weak Galerkin method ({g}WG), is introduced for Stokes equations in this paper by using a new definition of the weak gradient. Error estimates in energy norm and $L^2$ norm for…

数值分析 · 数学 2022-05-24 W. Qi , P. Seshaiyer , J. Wang