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20022026
most citedCANDELS: The Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey

2.2k citations

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12 papers · 1 filter

math.NA2024

Solver-in-the-Loop joint operator learning: fractional Laplace-Beltrami features for interface reconstruction

Yangyang Zheng, Huayi Wei, Shuhao Cao +1

In this work, we propose a joint operator learning method for reconstructing images of conductivity coefficients from boundary data. Inspired by the idea of employing partial diffe…

math.NA2024★ 2 cited

Edge-averaged virtual element methods for convection-diffusion and convection-dominated problems

Shuhao Cao, Long Chen, Seulip Lee

This manuscript develops edge-averaged virtual element (EAVE) methodologies to address convection-diffusion problems effectively in the convection-dominated regime. It introduces a…

math.NA2022★ 3 cited

A nonconforming primal hybrid finite element method for the two-dimensional vector Laplacian

Mary Barker, Shuhao Cao, Ari Stern

We introduce a nonconforming hybrid finite element method for the two-dimensional vector Laplacian, based on a primal variational principle for which conforming methods are known t…

math.NA2022★ 26 cited

Immersed Virtual Element Methods for Electromagnetic Interface Problems in Three Dimensions

Shuhao Cao, Long Chen, Ruchi Guo

Finite element methods for electromagnetic problems modeled by Maxwell-type equations are highly sensitive to the conformity of approximation spaces, and non-conforming methods may…

math.NA2021★ 24 cited

Immersed Virtual Element Methods for Elliptic Interface Problems in Two Dimensions

Shuhao Cao, Long Chen, Ruchi Guo +1

This article presents an immersed virtual element method for solving a class of interface problems that combines the advantages of both body-fitted mesh methods and unfitted mesh m…

math.NA2020★ 4 cited

Convergence and optimality of an adaptive modified weak Galerkin finite element method

Yingying Xie, Shuhao Cao, Long Chen +1

An adaptive modified weak Galerkin method (AmWG) for an elliptic problem is studied in this paper, in addition to its convergence and optimality. The modified weak Galerkin bilinea…

math.NA2017★ 7 cited

Anisotropic Mesh Adaptation for Finite Element Solution of Anisotropic Porous Medium Equation

Xianping Li

Anisotropic Porous Medium Equation (APME) is developed as an extension of the Porous Medium Equation (PME) for anisotropic porous media. A special analytical solution is derived fo…

math.NA2017★ 35 cited

Moving mesh finite element simulation for phase-field modeling of brittle fracture and convergence of newton's iteration

Fei Zhang, Weizhang Huang, Xianping Li +1

A moving mesh finite element method is studied for the numerical solution of a phase-field model for brittle fracture. The moving mesh partial differential equation approach is emp…

math.NA2016★ 9 cited

A study on nonnegativity preservation in finite element approximation of Nagumo-type nonlinear differential equations

Xianping Li, Weizhang Huang

Preservation of nonnengativity and boundedness in the finite element solution of Nagumo-type equations with general anisotropic diffusion is studied. Linear finite elements and the…

math.NA2015★ 1 cited

A Bootstrap Multigrid Eigensolver

James Brannick, Shuhao Cao

This paper introduces bootstrap multigrid methods for solving eigenvalue problems arising from the discretization of partial differential equations. Inspired by the full bootstrap…

math.NA2015★ 3 cited

Anisotropic mesh adaptation for 3D anisotropic diffusion problems with application to fractured reservoir simulation

Xianping Li, Weizhang Huang

Anisotropic mesh adaptation is studied for linear finite element solution of 3D anisotropic diffusion problems. The M-uniform mesh approach is used, where an anisotropic adaptive m…

math.NA2015★ 25 cited

Lebesgue Constants Arising in a Class of Collocation Methods

William W. Hager, Hongyan Hou, Anil V. Rao

Estimates are obtained for the Lebesgue constants associated with the Gauss quadrature points on augmented by the point and with the Radau quadrature points on eith…