A Preconditioned Iterative Method for Saddlepoint Problems. - Torgeir Rusten; Ragnar Winther (SIAM J. Matrix Anal. Appl., 1992)

The Solution of Nonstrictly Hyperbolic Conservation Laws May Be Hard to Compute. - Aslak Tveito; Ragnar Winther (SIAM J. Sci. Comput., 1995)

Interior penalty preconditioners for mixed finite element approximations of elliptic problems. - Torgeir Rusten; Panayot S. Vassilevski; Ragnar Winther (Math. Comput., 1996)

Domain Embedding and the Dirichlet Problem. - Einar Haug; Torgeir Rusten; Panayot S. Vassilevski; Ragnar Winther (LSSC, 1997)

Preconditioning in Hdiv and applications. - Douglas N. Arnold; Richard S. Falk; Ragnar Winther (Math. Comput., 1997)

Domain embedding preconditioners for mixed systems. - Torgeir Rusten; Panayot S. Vassilevski; Ragnar Winther (Numer. Linear Algebra Appl., 1998)

A domain embedding preconditioner for the Lagrange multiplier system. - Einar Haug; Ragnar Winther (Math. Comput., 2000)

Multigrid in H (div) and H (curl). - Douglas N. Arnold; Richard S. Falk; Ragnar Winther (Numerische Mathematik, 2000)

A robust nonconforming H2-element. - Trygve K. Nilssen; Xue-Cheng Tai; Ragnar Winther (Math. Comput., 2001)

Preconditioned Iterative Methods for Scattered Data Interpolation. - Tom Lyche; Trygve K. Nilssen; Ragnar Winther (Adv. Comput. Math., 2002)

Mixed finite elements for elasticity. - Douglas N. Arnold; Ragnar Winther (Numerische Mathematik, 2002)

A Robust Finite Element Method for Darcy-Stokes Flow. - Kent-André Mardal; Xue-Cheng Tai; Ragnar Winther (SIAM J. Numer. Anal., 2002)

Uniform preconditioners for the time dependent Stokes problem. - Kent-André Mardal; Ragnar Winther (Numerische Mathematik, 2004)

An observation on Korn's inequality for nonconforming finite element methods. - Kent-André Mardal; Ragnar Winther (Math. Comput., 2006)

Robust convergence of multi point flux approximation on rough grids. - Runhild A. Klausen; Ragnar Winther (Numerische Mathematik, 2006)

On Constraint Preservation in Numerical Simulations of Yang-Mills Equations. - Snorre H. Christiansen; Ragnar Winther (SIAM J. Sci. Comput., 2006)

Mixed finite element methods for linear elasticity with weakly imposed symmetry. - Douglas N. Arnold; Richard S. Falk; Ragnar Winther (Math. Comput., 2007)

Finite elements for symmetric tensors in three dimensions. - Douglas N. Arnold; Gerard Awanou; Ragnar Winther (Math. Comput., 2008)

Smoothed projections in finite element exterior calculus. - Snorre H. Christiansen; Ragnar Winther (Math. Comput., 2008)

CENS, CMA and the CENS-CMA Project. - Jüri Engelbrecht; Ragnar Winther; Ewald Quak (Applied Wave Mathematics, 2009)

A Saddle Point Approach to the Computation of Harmonic Maps. - Qiya Hu; Xue-Cheng Tai; Ragnar Winther (SIAM J. Numer. Anal., 2009)

Preconditioning discretizations of systems of partial differential equations. - Kent-André Mardal; Ragnar Winther (Numer. Linear Algebra Appl., 2011)

A uniformly stable Fortin operator for the Taylor-Hood element. - Kent-André Mardal; Joachim Schöberl; Ragnar Winther (Numerische Mathematik, 2013)

Local bounded cochain projections. - Richard S. Falk; Ragnar Winther (Math. Comput., 2014)

The Bubble Transform: A New Tool for Analysis of Finite Element Methods. - Richard S. Falk; Ragnar Winther (Found. Comput. Math., 2016)

Weakly Imposed Symmetry and Robust Preconditioners for Biot's Consolidation Model. - Trygve Bærland; Jeonghun J. Lee; Kent-André Mardal; Ragnar Winther (Comput. Methods Appl. Math., 2017)

Parameter-Robust Discretization and Preconditioning of Biot's Consolidation Model. - Jeonghun J. Lee; Kent-André Mardal; Ragnar Winther (SIAM J. Sci. Comput., 2017)

Local coderivatives and approximation of Hodge Laplace problems. - Jeonghun J. Lee; Ragnar Winther (Math. Comput., 2018)

Local space-preserving decompositions for the bubble transform. - Richard S. Falk; Ragnar Winther (CoRR, 2023)

Construction of polynomial preserving cochain extensions by blending. - Richard S. Falk; Ragnar Winther (Math. Comput., 2023)

A Uniform Preconditioner for a Newton Algorithm for Total Variation Minimization and Minimum-Surface Problems. - Xue-Cheng Tai; Ragnar Winther; Xiaodi Zhang 003; Weiying Zheng (SIAM J. Numer. Anal., 2023)

The Bubble Transform and the de Rham Complex. - Richard S. Falk; Ragnar Winther (Found. Comput. Math., 2024)