Discretizations of nonlinear dissipative evolution equations. Order and convergence.
(2005)- Abstract
- The theme of this thesis is to study discretizations of nonlinear dissipative evolution equations, which arise in e.g. advection-diffusion-reaction processes. The convergence analysis is conducted by first considering an abstract time discretization of the problem, which enables a decoupling of the time and spatial approximations, and secondly by introducing the spatial discretization as an evolution on a finite dimensional space.
For A-stable multistep methods and algebraically stable Runge-Kutta methods the very same global error bounds are obtained in this infinite dimensional setting as derived for stiff ODEs. Error bounds are also presented for full discretizations based on spatial Galerkin approximations.
... (More) - The theme of this thesis is to study discretizations of nonlinear dissipative evolution equations, which arise in e.g. advection-diffusion-reaction processes. The convergence analysis is conducted by first considering an abstract time discretization of the problem, which enables a decoupling of the time and spatial approximations, and secondly by introducing the spatial discretization as an evolution on a finite dimensional space.
For A-stable multistep methods and algebraically stable Runge-Kutta methods the very same global error bounds are obtained in this infinite dimensional setting as derived for stiff ODEs. Error bounds are also presented for full discretizations based on spatial Galerkin approximations.
In contrast to earlier studies, our analysis is not relying on linearization procedures, but on the fully nonlinear framework of logarithmic Lipschitz constants and a generalization of the classical B-convergence theory. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/545744
- author
- Hansen, Eskil LU
- supervisor
- opponent
-
- Professor Ostermann, Alexander, Leopold-Franzens-Universität, Innsbruck, Austria
- organization
- publishing date
- 2005
- type
- Thesis
- publication status
- published
- subject
- keywords
- kontroll, systems, numerisk analys, control, Datalogi, numerical analysis, Computer science, B-convergence, Dissipative maps, Logarithmic Lipschitz constants, Galerkin methods, Nonlinear evolution equations, Time discretizations, system
- pages
- 84 pages
- publisher
- Numerical Analysis, Lund University
- defense location
- Room MH:C, Centre for Mathematical Sciences, Sölvegatan 18, Lund Institute of Technology
- defense date
- 2005-12-09 13:15:00
- external identifiers
-
- other:ISRN: LUTFNA-1001-2005
- ISBN
- 91-628-6668-0
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Numerical Analysis (011015004)
- id
- d1cd9ba8-5807-4813-a741-3f6ac9b403ac (old id 545744)
- date added to LUP
- 2016-04-01 16:24:08
- date last changed
- 2018-11-21 20:41:08
@phdthesis{d1cd9ba8-5807-4813-a741-3f6ac9b403ac, abstract = {{The theme of this thesis is to study discretizations of nonlinear dissipative evolution equations, which arise in e.g. advection-diffusion-reaction processes. The convergence analysis is conducted by first considering an abstract time discretization of the problem, which enables a decoupling of the time and spatial approximations, and secondly by introducing the spatial discretization as an evolution on a finite dimensional space.<br/><br> <br/><br> For A-stable multistep methods and algebraically stable Runge-Kutta methods the very same global error bounds are obtained in this infinite dimensional setting as derived for stiff ODEs. Error bounds are also presented for full discretizations based on spatial Galerkin approximations.<br/><br> <br/><br> In contrast to earlier studies, our analysis is not relying on linearization procedures, but on the fully nonlinear framework of logarithmic Lipschitz constants and a generalization of the classical B-convergence theory.}}, author = {{Hansen, Eskil}}, isbn = {{91-628-6668-0}}, keywords = {{kontroll; systems; numerisk analys; control; Datalogi; numerical analysis; Computer science; B-convergence; Dissipative maps; Logarithmic Lipschitz constants; Galerkin methods; Nonlinear evolution equations; Time discretizations; system}}, language = {{eng}}, publisher = {{Numerical Analysis, Lund University}}, school = {{Lund University}}, title = {{Discretizations of nonlinear dissipative evolution equations. Order and convergence.}}, year = {{2005}}, }