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20212026
most citedPreconditioned NonSymmetric/Symmetric Discontinuous Galerkin Method for Elliptic Problem with Reconstructed Discontinuous Approximation

1 citations · 1 across the 7 of their papers we have counts for

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7 papers

math.NA2026

Preconditioned Reconstructed Discontinuous Approximation For Elliptic Interface Problem on Unfitted Mesh

Ruo Li, Qicheng Liu, Fanyi Yang +1

In this paper, we develop an efficient preconditioned unfitted finite element method for the elliptic interface problem, based on the reconstructed discontinuous approximation. The…

math.NA2024

A Finite Element Method by Patch Reconstruction for the Quad-Curl Problem Using Mixed Formulations

Ruo Li, Qicheng Liu, Shuhai Zhao

We develop a high order reconstructed discontinuous approximation (RDA) method for solving a mixed formulation of the quad-curl problem in two and three dimensions. This mixed form…

math.NA2024

A Preconditioned Discontinuous Galerkin Method for Biharmonic Equation with -Reconstructed Approximation

Ruo Li, Qicheng Liu, Fanyi Yang

In this paper, we present a high-order finite element method based on a reconstructed approximation to the biharmonic equation. In our construction, the space is reconstructed from…

math.NA2024

An arbitrary order Reconstructed Discontinuous Approximation to Fourth-order Curl Problem

Ruo Li, Qicheng Liu, Shuhai Zhao

We present an arbitrary order discontinuous Galerkin finite element method for solving the fourth-order curl problem using a reconstructed discontinuous approximation method. It is…

math.NA2023★ 1 cited

Preconditioned NonSymmetric/Symmetric Discontinuous Galerkin Method for Elliptic Problem with Reconstructed Discontinuous Approximation

Ruo Li, Qicheng Liu, Fanyi Yang

In this paper, we propose and analyze an efficient preconditioning method for the elliptic problem based on the reconstructed discontinuous approximation method. We reconstruct a h…

math.NA2023

An arbitrary order Reconstructed Discontinuous Approximation to Biharmonic Interface Problem

Yan Chen, Ruo Li, Qicheng Liu

We present an arbitrary order discontinuous Galerkin finite element method for solving the biharmonic interface problem on the unfitted mesh. The approximation space is constructed…

math.NA2021

A discontinuous least squares finite element method for Helmholtz equations

Ruo Li, Qicheng Liu, Fanyi Yang

We propose a discontinuous least squares finite element method for solving the Helmholtz equation. The method is based on the L2 norm least squares functional with the weak imposit…