Ragnar Winther

Found. Comput. Math., February, 2024

2023

A Uniform Preconditioner for a Newton Algorithm for Total Variation Minimization and Minimum-Surface Problems.

[BibT_eX]

[DOI]

SIAM J. Numer. Anal., October, 2023

Construction of polynomial preserving cochain extensions by blending.

[BibT_eX]

[DOI]

Math. Comput., February, 2023

Local space-preserving decompositions for the bubble transform.

[BibT_eX]

[DOI]

CoRR, 2023

2018

Local coderivatives and approximation of Hodge Laplace problems.

[BibT_eX]

[DOI]

Jeonghun J. Lee

Math. Comput., 2018

2017

Parameter-Robust Discretization and Preconditioning of Biot's Consolidation Model.

[BibT_eX]

[DOI]

Jeonghun J. Lee

SIAM J. Sci. Comput., 2017

Weakly Imposed Symmetry and Robust Preconditioners for Biot's Consolidation Model.

[BibT_eX]

[DOI]

Comput. Methods Appl. Math., 2017

2016

The Bubble Transform: A New Tool for Analysis of Finite Element Methods.

[BibT_eX]

[DOI]

Found. Comput. Math., 2016

2014

Local bounded cochain projections.

[BibT_eX]

[DOI]

Math. Comput., 2014

2013

A uniformly stable Fortin operator for the Taylor-Hood element.

[BibT_eX]

[DOI]

Joachim Schöberl

Numerische Mathematik, 2013

2011

Preconditioning discretizations of systems of partial differential equations.

[BibT_eX]

[DOI]

Numer. Linear Algebra Appl., 2011

2009

A Saddle Point Approach to the Computation of Harmonic Maps.

[BibT_eX]

[DOI]

Qiya Hu

Xue-Cheng Tai

SIAM J. Numer. Anal., 2009

CENS, CMA and the CENS-CMA Project.

[BibT_eX]

[DOI]

Jüri Engelbrecht

Ewald Quak

Proceedings of the Applied Wave Mathematics, 2009

2008

Smoothed projections in finite element exterior calculus.

[BibT_eX]

[DOI]

Snorre H. Christiansen

Math. Comput., 2008

Finite elements for symmetric tensors in three dimensions.

[BibT_eX]

[DOI]

Gerard Awanou

Math. Comput., 2008

2007

Mixed finite element methods for linear elasticity with weakly imposed symmetry.

[BibT_eX]

[DOI]

Math. Comput., 2007

2006

On Constraint Preservation in Numerical Simulations of Yang-Mills Equations.

[BibT_eX]

[DOI]

Snorre H. Christiansen

SIAM J. Sci. Comput., 2006

Robust convergence of multi point flux approximation on rough grids.

[BibT_eX]

[DOI]

Runhild A. Klausen

Numerische Mathematik, 2006

An observation on Korn's inequality for nonconforming finite element methods.

[BibT_eX]

[DOI]

Math. Comput., 2006

2004

Uniform preconditioners for the time dependent Stokes problem.

[BibT_eX]

[DOI]

Numerische Mathematik, 2004

2002

A Robust Finite Element Method for Darcy-Stokes Flow.

[BibT_eX]

[DOI]

Xue-Cheng Tai

SIAM J. Numer. Anal., 2002

Mixed finite elements for elasticity.

[BibT_eX]

[DOI]

Numerische Mathematik, 2002

Preconditioned Iterative Methods for Scattered Data Interpolation.

[BibT_eX]

[DOI]

Tom Lyche

Trygve K. Nilssen

Adv. Comput. Math., 2002

2001

A robust nonconforming H<sup>2</sup>-element.

[BibT_eX]

[DOI]

Trygve K. Nilssen

Xue-Cheng Tai

Math. Comput., 2001

2000

Multigrid in H (div) and H (curl).

[BibT_eX]

[DOI]

Numerische Mathematik, 2000

A domain embedding preconditioner for the Lagrange multiplier system.

[BibT_eX]

[DOI]

Einar Haug

Math. Comput., 2000

1998

Domain embedding preconditioners for mixed systems.

[BibT_eX]

[DOI]

Panayot S. Vassilevski

Numer. Linear Algebra Appl., 1998

1997

Preconditioning in H<sup>div</sup> and applications.

[BibT_eX]

[DOI]

Math. Comput., 1997

Domain Embedding and the Dirichlet Problem.

[BibT_eX]

Einar Haug

Panayot S. Vassilevski

Proceedings of the Large-Scale Scientific Computation for Engineering and Environmental Problems, 1997

1996

Interior penalty preconditioners for mixed finite element approximations of elliptic problems.

[BibT_eX]

[DOI]

Panayot S. Vassilevski

Math. Comput., 1996

1995

The Solution of Nonstrictly Hyperbolic Conservation Laws May Be Hard to Compute.

[BibT_eX]

[DOI]

Aslak Tveito

SIAM J. Sci. Comput., 1995

1992

A Preconditioned Iterative Method for Saddlepoint Problems.

[BibT_eX]

[DOI]