Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Mixed and least‐squares finite element methods with application to linear hyperbolic problems

Journal Article · · Numerical Linear Algebra with Applications
DOI:https://doi.org/10.1002/nla.2150· OSTI ID:1417505
 [1];  [1];  [2]
  1. Department of Applied Mathematics University of Colorado at Boulder USA
  2. Department of Applied Mathematics University of Colorado at Boulder USA, Fakultät für Mathematik Universität Duisburg‐Essen Germany
Summary

In this paper, a few dual least‐squares finite element methods and their application to scalar linear hyperbolic problems are studied. The purpose is to obtain L 2 ‐norm approximations on finite element spaces of the exact solutions to hyperbolic partial differential equations of interest. This is approached by approximating the generally infeasible quadratic minimization that defines the L 2 ‐orthogonal projection of the exact solution, by feasible least‐squares principles using the ideas of the original method proposed in the context of elliptic equations. All methods in this paper are founded upon and extend the approach that is rather general and applicable beyond the setting of elliptic problems. Error bounds are shown that point to the factors affecting the convergence and provide conditions that guarantee optimal rates. Furthermore, the preconditioning of the resulting linear systems is discussed. Numerical results are provided to illustrate the behavior of the methods on common finite element spaces.

Sponsoring Organization:
USDOE
Grant/Contract Number:
NA0002376
OSTI ID:
1417505
Alternate ID(s):
OSTI ID: 1537596
Journal Information:
Numerical Linear Algebra with Applications, Journal Name: Numerical Linear Algebra with Applications Journal Issue: 3 Vol. 25; ISSN 1070-5325
Publisher:
Wiley Blackwell (John Wiley & Sons)Copyright Statement
Country of Publication:
United Kingdom
Language:
English

References (31)

Preconditioning discretizations of systems of partial differential equations journal April 2010
Least-squares finite elements for first-order hyperbolic systems journal January 1988
A class of discontinuous Petrov-Galerkin methods. II. Optimal test functions journal October 2010
The Mathematical Theory of Finite Element Methods book January 2008
Numerical Approximation of Hyperbolic Systems of Conservation Laws book January 1996
Theory and Practice of Finite Elements book January 2004
Numerical Methods for Conservation Laws book January 1992
Automated Solution of Differential Equations by the Finite Element Method book January 2012
Mixed Finite Element Methods and Applications book January 2013
Error-bounds for finite element method journal January 1971
A class of discontinuous Petrov–Galerkin methods. Part I: The transport equation journal April 2010
Finite Volume Methods for Hyperbolic Problems book January 2002
A Comparative Study of Least-squares, SUPG and Galerkin Methods for Convection Problems journal October 2001
A least-squares approach based on a discrete minus one inner product for first order systems journal July 1997
First-Order System Least Squares for Second-Order Partial Differential Equations: Part I journal December 1994
Iterative Methods for Sparse Linear Systems book January 2003
Hybrid First-Order System Least Squares Finite Element Methods with Application to Stokes Equations journal January 2013
A Root-Node--Based Algebraic Multigrid Method journal January 2017
First-Order System $\CL\CL^*$ (FOSLL*): Scalar Elliptic Partial Differential Equations journal January 2001
First-Order System LL* (FOSLL*) for General Scalar Elliptic Problems in the Plane journal January 2005
A First-Order System Least Squares Finite Element Method for the Shallow Water Equations journal January 2005
First-Order System Least Squares for Second-Order Partial Differential Equations: Part II journal April 1997
First-Order System Least Squares for the Stokes Equations, with Application to Linear Elasticity journal October 1997
Analysis of Velocity-Flux First-Order System Least-Squares Principles for the Navier--Stokes Equations: Part I journal June 1998
Analysis of Velocity-Flux Least-Squares Principles for the Navier--Stokes Equations: Part II journal January 1999
A Boundary Functional for the Least-Squares Finite- Element Solution of Neutron Transport Problems journal January 1999
Finite Element Methods of Least-Squares Type journal January 1998
A Fully Asynchronous Multifrontal Solver Using Distributed Dynamic Scheduling journal January 2001
Least-Squares Finite Element Methods and Algebraic Multigrid Solvers for Linear Hyperbolic PDEs journal January 2004
Numerical Conservation Properties of H (div)-Conforming Least-Squares Finite Element Methods for the Burgers Equation journal January 2005
Improved Least-squares Error Estimates for Scalar Hyperbolic Problems journal January 2001

Similar Records

Scaling Behavior of Thermally Driven Fractures in Deep Low‐Permeability Formations: A Plane Strain Model With 1‐D Heat Conduction
Journal Article · Wed Feb 23 19:00:00 EST 2022 · Journal of Geophysical Research. Solid Earth · OSTI ID:1846323

Related Subjects