Ragnar Winther: search on Z-Library

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1

Finite element exterior calculus, homological techniques, and applications

Arnold, Douglas N., Falk, Richard S., Winther, Ragnar

Journal:

Year:

2006

Language:

english

File:

PDF, 1.04 MB

english, 2006

2

Mixed finite elements for elasticity

Douglas N. Arnold, Ragnar Winther

Journal:

Numerische Mathematik

Year:

2002

Language:

english

File:

PDF, 163 KB

english, 2002

3

Finite element exterior calculus: from Hodge theory to numerical stability

Arnold, Douglas N., Falk, Richard S., Winther, Ragnar

Journal:

Bulletin of the American Mathematical Society

Year:

2010

Language:

english

File:

PDF, 1.48 MB

english, 2010

4

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

Falk, Richard S., Winther, Ragnar

Journal:

Foundations of Computational Mathematics

Year:

2016

Language:

english

File:

PDF, 651 KB

english, 2016

5

Preconditioning discretizations of systems of partial differential equations

Kent-Andre Mardal, Ragnar Winther

Journal:

Numerical Linear Algebra with Applications

Year:

2011

Language:

english

File:

PDF, 304 KB

english, 2011

6

Convergence of multipoint flux approximations on quadrilateral grids

Runhild A. Klausen, Ragnar Winther

Journal:

Numerical Methods for Partial Differential Equations

Year:

2006

Language:

english

File:

PDF, 154 KB

english, 2006

7

A system of conservation laws including a stiff relaxation term; the 2D case

Wen Shen, Aslak Tveito, Ragnar Winther

Journal:

BIT Numerical Mathematics

Year:

1996

Language:

english

File:

PDF, 1.01 MB

english, 1996

8

Multigrid in H (div) and H (curl)

Douglas N. Arnold, Richard S. Falk, Ragnar Winther

Journal:

Numerische Mathematik

Year:

2000

Language:

english

File:

PDF, 170 KB

english, 2000

9

A Finite Element Method for a Version of the Boussinesq Equation

Winther, Ragnar

Journal:

SIAM Journal on Numerical Analysis

Year:

1982

Language:

english

File:

PDF, 784 KB

english, 1982

10

A Riemann Solver for a Two-Phase Multicomponent Process

Johansen, Thormod, Tveito, Aslak, Winther, Ragnar

Journal:

SIAM Journal on Scientific and Statistical Computing

Year:

1989

Language:

english

File:

PDF, 2.16 MB

english, 1989

11

Multicomponent Chromatography in a Two Phase Environment

Dahl, Olav, Johansen, Thormod, Tveito, Aslak, Winther, Ragnar

Journal:

SIAM Journal on Applied Mathematics

Year:

1992

Language:

english

File:

PDF, 3.09 MB

english, 1992

12

Finite elements for symmetric tensors in three dimensions

Arnold, Douglas N., Awanou, Gerard, Winther, Ragnar

Journal:

Mathematics of Computation

Year:

2008

Language:

english

File:

PDF, 329 KB

english, 2008

13

An L1-Error Bound for a Semi-Implicit Difference Scheme Applied to Stiff System of Conversation Laws

Hans Joachim Schroll, Aslak Tveito and Ragnar Winther

Journal:

SIAM Journal on Numerical Analysis

Year:

1997

Language:

english

File:

PDF, 1.27 MB

english, 1997

14

MIXED FINITE ELEMENT METHODS FOR LINEAR VISCOELASTICITY USING WEAK SYMMETRY

ROGNES, MARIE E., WINTHER, RAGNAR

Journal:

Mathematical Models and Methods in Applied Sciences

Year:

2010

Language:

english

File:

PDF, 490 KB

english, 2010

15

NONCONFORMING MIXED ELEMENTS FOR ELASTICITY

ARNOLD, DOUGLAS N., WINTHER, RAGNAR

Journal:

Mathematical Models and Methods in Applied Sciences

Year:

2003

Language:

english

File:

PDF, 179 KB

english, 2003

16

Multicomponent Chromatography in a Two Phase Environment

Olav Dahl, Thormod Johansen, Aslak Tveito and Ragnar Winther

Journal:

SIAM Journal on Applied Mathematics

Year:

1992

Language:

english

File:

PDF, 3.60 MB

english, 1992

17

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

Mardal, Kent-Andre, Winther, Ragnar

Journal:

Mathematics of Computation

Year:

2005

Language:

english

File:

PDF, 134 KB

english, 2005

18

Mixed finite element methods for linear elasticity with weakly imposed symmetry

Arnold, Douglas N., Falk, Richard S., Winther, Ragnar

Journal:

Mathematics of Computation

Year:

2007

Language:

english

File:

PDF, 368 KB

english, 2007

19

Domain embedding preconditioners for mixed systems

Torgeir Rusten, Panayot S. Vassilevski, Ragnar Winther

Journal:

Numerical Linear Algebra with Applications

Year:

1998

Language:

english

File:

PDF, 141 KB

english, 1998

20

Unified finite element discretizations of coupled Darcy–Stokes flow

Trygve Karper, Kent-Andre Mardal, Ragnar Winther

Journal:

Numerical Methods for Partial Differential Equations

Year:

2009

Language:

english

File:

PDF, 180 KB

english, 2009

21

Geometric decompositions and local bases for spaces of finite element differential forms

Douglas N. Arnold, Richard S. Falk, Ragnar Winther

Journal:

Computer Methods in Applied Mechanics and Engineering

Year:

2009

Language:

english

File:

PDF, 428 KB

english, 2009

22

Numerical methods for incompressible viscous flow

Hans Petter Langtangen, Kent-Andre Mardal, Ragnar Winther

Journal:

Advances in Water Resources

Year:

2002

Language:

english

File:

PDF, 268 KB

english, 2002

23

Finite element differential forms

Douglas N. Arnold, Richard S. Falk, Ragnar Winther

Journal:

Year:

2007

Language:

english

File:

PDF, 96 KB

english, 2007

24

Uniform preconditioners for the time dependent Stokes problem

Kent-Andre Mardal, Ragnar Winther

Journal:

Numerische Mathematik

Year:

2004

Language:

english

File:

PDF, 202 KB

english, 2004

25

Robust convergence of multi point flux approximation on rough grids

Runhild A. Klausen, Ragnar Winther

Journal:

Numerische Mathematik

Year:

2006

Language:

english

File:

PDF, 302 KB

english, 2006

26

Uniform preconditioners for the time dependent Stokes problem

Kent-Andre Mardal, Ragnar Winther

Journal:

Numerische Mathematik

Year:

2006

Language:

english

File:

PDF, 97 KB

english, 2006

27

Stability of a model of human granulopoiesis using continuous maturation

Ivar Østby, Ragnar Winther

Journal:

Journal of Mathematical Biology

Year:

2004

Language:

english

File:

PDF, 393 KB

english, 2004

28

A discrete de Rham complex with enhanced smoothness

Xue–Cheng Tai, Ragnar Winther

Journal:

Year:

2006

Language:

english

File:

PDF, 190 KB

english, 2006

29

Preconditioned Iterative Methods for Scattered Data Interpolation

Tom Lyche, Trygve K. Nilssen, Ragnar Winther

Journal:

Advances in Computational Mathematics

Year:

2002

Language:

english

File:

PDF, 141 KB

english, 2002

30

Error estimates for a galerkin approximation of a parabolic control problem

Journal:

Annali di Matematica Pura ed Applicata (1923 -)

Year:

1978

Language:

english

File:

PDF, 1.50 MB

english, 1978

31

A Saddle Point Approach to the Computation of Harmonic Maps

Hu, Qiya, Tai, Xue-Cheng, Winther, Ragnar

Journal:

SIAM Journal on Numerical Analysis

Year:

2009

Language:

english

File:

PDF, 561 KB

english, 2009

32

Some Superlinear Convergence Results for the Conjugate Gradient Method

Winther, Ragnar

Journal:

SIAM Journal on Numerical Analysis

Year:

1980

Language:

english

File:

PDF, 355 KB

english, 1980

33

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

Tveito, Aslak, Winther, Ragnar

Journal:

SIAM Journal on Scientific Computing

Year:

1995

Language:

english

File:

PDF, 982 KB

english, 1995

34

An L1--Error Bound for a Semi-Implicit Difference Scheme Applied to a Stiff System of Conservation Laws

Schroll, Hans Joachim, Tveito, Aslak, Winther, Ragnar

Journal:

SIAM Journal on Numerical Analysis

Year:

1997

Language:

english

File:

PDF, 297 KB

english, 1997

35

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

Christiansen, Snorre H., Winther, Ragnar

Journal:

SIAM Journal on Scientific Computing

Year:

2006

Language:

english

File:

PDF, 416 KB

english, 2006

36

A Robust Finite Element Method for Darcy--Stokes Flow

Mardal, Kent Andre, Tai, Xue-Cheng, Winther, Ragnar

Journal:

SIAM Journal on Numerical Analysis

Year:

2002

Language:

english

File:

PDF, 271 KB

english, 2002

37

The Riemann Problem for Multicomponent Polymer Flooding

Johansen, Thormod, Winther, Ragnar

Journal:

SIAM Journal on Mathematical Analysis

Year:

1989

Language:

english

File:

PDF, 1.91 MB

english, 1989

38

On the Rate of Convergence to Equilibrium for a System of Conservation Laws with a Relaxation Term

Tveito, Aslak, Winther, Ragnar

Journal:

SIAM Journal on Mathematical Analysis

Year:

1997

Language:

english

File:

PDF, 384 KB

english, 1997

39

Existence, Uniqueness, and Continuous Dependence for a System of Hyperbolic Conservation Laws Modeling Polymer Flooding

Tveito, Aslak, Winther, Ragnar

Journal:

SIAM Journal on Mathematical Analysis

Year:

1991

Language:

english

File:

PDF, 2.34 MB

english, 1991

40

On the Zero Relaxation Limit for a System Modeling the Motions of a Viscoelastic Solid

Shen, Wen, Tveito, Aslak, Winther, Ragnar

Journal:

SIAM Journal on Mathematical Analysis

Year:

1999

Language:

english

File:

PDF, 406 KB

english, 1999

41

The Solution of the Riemann Problem for a Hyperbolic System of Conservation Laws Modeling Polymer Flooding

Johansen, Thormod, Winther, Ragnar

Journal:

SIAM Journal on Mathematical Analysis

Year:

1988

Language:

english

File:

PDF, 1.75 MB

english, 1988

42

A Preconditioned Iterative Method for Saddlepoint Problems

Rusten, Torgeir, Winther, Ragnar

Journal:

SIAM Journal on Matrix Analysis and Applications

Year:

1992

Language:

english

File:

PDF, 2.05 MB

english, 1992

43

A uniformly stable Fortin operator for the Taylor–Hood element

Kent-Andre Mardal, Joachim Schöberl, Ragnar Winther

Journal:

Numerische Mathematik

Year:

2013

Language:

english

File:

PDF, 241 KB

english, 2013

44

An Error Estimate for a Finite Difference Scheme Approximating a Hyperbolic System of Conservation Laws

Aslak Tveito and Ragnar Winther

Journal:

SIAM Journal on Numerical Analysis

Year:

1993

Language:

english

File:

PDF, 449 KB

english, 1993

45

An Error Estimate for a Finite Difference Scheme Approximating a Hyperbolic System of Conservation Laws

Tveito, Aslak, Winther, Ragnar

Journal:

SIAM Journal on Numerical Analysis

Year:

1993

Language:

english

File:

PDF, 1.72 MB

english, 1993

46

The Korteweg–de Vries Equation, Posed in a Quarter-Plane

Bona, Jerry, Winther, Ragnar

Journal:

SIAM Journal on Mathematical Analysis

Year:

1983

Language:

english

File:

PDF, 4.61 MB

english, 1983

47

Double complexes and local cochain projections

Falk, Richard S., Winther, Ragnar

Journal:

Numerical Methods for Partial Differential Equations

Year:

2015

Language:

english

File:

PDF, 155 KB

english, 2015

48

Interior Penalty Preconditioners for Mixed Finite Element Approximations of Elliptic Problems

Torgeir Rusten, Panayot S. Vassilevski and Ragnar Winther

Journal:

Mathematics of Computation

Year:

1996

Language:

english

File:

PDF, 426 KB

english, 1996

49

NONCONFORMING TETRAHEDRAL MIXED FINITE ELEMENTS FOR ELASTICITY

ARNOLD, DOUGLAS N., AWANOU, GERARD, WINTHER, RAGNAR

Journal:

Mathematical Models and Methods in Applied Sciences

Year:

2014

Language:

english

File:

PDF, 376 KB

english, 2014

50

A Stable Finite Element Method for Initial-Boundary Value Problems for First-Order Hyperbolic Systems

Journal:

Mathematics of Computation

Year:

1981

Language:

english

File:

PDF, 1.82 MB

english, 1981

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