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A new interior-exterior penalty method for solving quasi-variational inequality and pseudo-monotone operators arising in two-dimensional point contact problem has been analyzed and developed in discontinuous Galerkin finite volume method…

数值分析 · 数学 2021-10-26 Peeyush Singh

In this paper, we derive a priori error estimates for a class of interior penalty discontinuous Galerkin (DG) methods using immersed finite element (IFE) functions for a classic second-order elliptic interface problem. The error estimation…

数值分析 · 数学 2016-11-02 Tao Lin , Qing Yang , Xu Zhang

An interior penalty discontinuous Galerkin method is devised to approximate minimizers of a linear folding model by discontinuous isoparametric finite element functions that account for an approximation of a folding arc. The numerical…

数值分析 · 数学 2022-05-13 Sören Bartels , Andrea Bonito , Philipp Tscherner

This paper applies a discontinuous Galerkin finite element method to the Kelvin-Voigt viscoelastic fluid motion equations when the forcing function is in $L^\infty({\bf L}^2)$-space. Optimal a priori error estimates in $L^\infty({\bf…

数值分析 · 数学 2022-02-10 Saumya Bajpai , Deepjyoti Goswami , Kallol Ray

We propose an $hp$-adaptive discontinuous Galerkin finite element method (DGFEM) to approximate the solution of a static crack boundary value problem. The mathematical model describes the behavior of a geometrically linear strain-limiting…

数值分析 · 数学 2024-11-04 Ram Manohar , S. M. Mallikarjunaiah

This article provides quasi-optimal a priori error estimates for an optimal control problem constrained by an elliptic obstacle problem where the finite element discretization is carried out using the symmetric interior penalty…

数值分析 · 数学 2023-12-21 Harbir Antil , Rohit Khandelwal , Umarkhon Rakhimov

In this paper, we investigate the combination of a linear continuous interior penalty type and a non-linear artificial diffusion stabilisation applied to the transport problem, based on continuous Galerkin finite elements in space. This…

数值分析 · 数学 2026-04-24 Erik Burman , Fabian Heimann

A discontinuous Galerkin (DG) scheme for solving semilinear elliptic problem is developed and analyzed in this paper. The DG finite element discretizations are established, and the corresponding existence and uniqueness theorem is proved by…

数值分析 · 数学 2021-01-27 Jiajun Zhan , Liuqiang Zhong , Jie Peng

In this paper, we derive improved a priori error estimates for families of hybridizable interior penalty discontinuous Galerkin (H-IP) methods using a variable penalty for second-order elliptic problems. The strategy is to use a…

数值分析 · 数学 2021-10-06 Gregory Etangsale , Marwan Fahs , Vincent Fontaine , Nalitiana Rajaonison

This paper analyses discontinuous Galerkin finite element methods (DGFEM) to approximate a regular solution to the von K\'arm\'an equations defined on a polygonal domain. A discrete inf-sup condition sufficient for the stability of the…

数值分析 · 数学 2017-08-28 Carsten Carstensen , Gouranga Mallik , Neela Nataraj

This paper is concerned with error estimates of the fully discrete generalized finite element method (GFEM) with optimal local approximation spaces for solving elliptic problems with heterogeneous coefficients. The local approximation…

数值分析 · 数学 2021-10-01 Chupeng Ma , Robert Scheichl

In this paper we propose and analyze an interior penalty discontinuous Galerkin (IP-DG) method using piecewise linear polynomials for the elastic Helmholtz equations with the first order absorbing boundary condition. It is proved that the…

数值分析 · 数学 2015-01-23 Xiaobing Feng , Cody Lorton

We propose an unfitted interface penalty Discontinuous Galerkin-Finite Element Method (UIPDG-FEM) for elliptic interface problems. This hybrid method combines the interior penalty discontinuous Galerkin (IPDG) terms near the…

数值分析 · 数学 2025-05-27 Juan Han , Haijun Wu , Yuanming Xiao

An $hp$-discontinuous Galerkin (DG) method is applied to a class of second order linear hyperbolic integro-differential equations. Based on the analysis of an expanded mixed type Ritz-Volterra projection, {\it a priori} $hp$-error estimates…

数值分析 · 数学 2014-01-23 Samir Karaa , Amiya K. Pani , Sangita Yadav

A family of interior penalty $hp$-discontinuous Galerkin methods is developed and analyzed for the numerical solution of the quasilinear elliptic equation $-\nabla{} \cdot (\mathbf{A}(\nabla{u}) \nabla{u} = f$ posed on the open bounded…

数值分析 · 数学 2014-01-03 Peter W. Fick

This paper proposes and analyzes two fully discrete mixed interior penalty discontinuous Galerkin (DG) methods for the fourth order nonlinear Cahn-Hilliard equation. Both methods use the backward Euler method for time discretization and…

数值分析 · 数学 2015-02-24 Xiaobing Feng , Yukun Li , Yulong Xing

We introduce an $hp$-version discontinuous Galerkin finite element method (DGFEM) for the linear Boltzmann transport problem. A key feature of this new method is that, while offering arbitrary order convergence rates, it may be implemented…

We extend the applicability of the popular interior-penalty discontinuous Galerkin (dG) method discretizing advection-diffusion-reaction problems to meshes comprising extremely general, essentially arbitrarily-shaped element shapes. In…

数值分析 · 数学 2021-05-11 Andrea Cangiani , Zhaonan Dong , Emmanuil H. Georgoulis

In this paper we establish a best approximation property of fully discrete Galerkin finite element solutions of second order parabolic problems on convex polygonal and polyhedral domains in the $L^\infty$ norm. The discretization method…

数值分析 · 数学 2018-08-20 Dmitriy Leykekhman , Boris Vexler

This paper develops and analyzes some interior penalty discontinuous Galerkin methods using piecewise linear polynomials for the Helmholtz equation with the first order absorbing boundary condition in the two and three dimensions. It is…

数值分析 · 数学 2008-10-09 Xiaobing Feng , Haijun Wu
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