A new family of mixed finite elements in IR3
Numerische Mathematik
Mixed and hybrid finite element methods
Mixed and hybrid finite element methods
Direct discretization of planar div-curl problems
SIAM Journal on Numerical Analysis
Applied Numerical Mathematics
Covolume Solutions of Three-Dimensional Div-Curl Equations
SIAM Journal on Numerical Analysis
Multigrid Method for Maxwell's Equations
SIAM Journal on Numerical Analysis
Mimetic discretizations for Maxwell's equations
Journal of Computational Physics
An Aggregation-Based Domain Decomposition Preconditioner for Groundwater Flow
SIAM Journal on Scientific Computing
First-Order System $\CL\CL^*$ (FOSLL*): Scalar Elliptic Partial Differential Equations
SIAM Journal on Numerical Analysis
The Discrete First-Order System Least Squares: The Second-Order Elliptic Boundary Value Problem
SIAM Journal on Numerical Analysis
Iterative Methods for Sparse Linear Systems
Iterative Methods for Sparse Linear Systems
Parallel multigrid smoothing: polynomial versus Gauss--Seidel
Journal of Computational Physics
SIAM Journal on Numerical Analysis
SIAM Journal on Numerical Analysis
An overview of the Trilinos project
ACM Transactions on Mathematical Software (TOMS) - Special issue on the Advanced CompuTational Software (ACTS) Collection
An Improved Convergence Bound for Aggregation-Based Domain Decomposition Preconditioners
SIAM Journal on Matrix Analysis and Applications
First-Order System LL* (FOSLL*) for General Scalar Elliptic Problems in the Plane
SIAM Journal on Numerical Analysis
Weighted-Norm First-Order System Least Squares (FOSLS) for Problems with Corner Singularities
SIAM Journal on Numerical Analysis
FOSLL* Method for the Eddy Current Problem with Three-Dimensional Edge Singularities
SIAM Journal on Numerical Analysis
An estimator for the diagonal of a matrix
Applied Numerical Mathematics
Nodal Auxiliary Space Preconditioning in H(curl) and H(div) Spaces
SIAM Journal on Numerical Analysis
A Weighted $H(div)$ Least-Squares Method for Second-Order Elliptic Problems
SIAM Journal on Numerical Analysis
An Algebraic Multigrid Approach Based on a Compatible Gauge Reformulation of Maxwell's Equations
SIAM Journal on Scientific Computing
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We develop and analyze least-squares finite element methods for two complementary div-curl elliptic boundary value problems. The first one prescribes the tangential component of the vector field on the boundary and is solved using curl-conforming elements. The second problem specifies the normal component of the vector field and is handled by div-conforming elements. We prove that both least-squares formulations are norm-equivalent with respect to suitable discrete norms, yield optimal asymptotic error estimates, and give rise to algebraic systems that can be solved by efficient algebraic multigrid methods. Numerical results that illustrate scalability of iterative solvers and optimal rates of convergence are also included.