|
|
|
Viewing Version
9
of
'existence and uniqueness of solution of ordinary differential equations'
|
[ view 'existence and uniqueness of solution of ordinary differential equations'
|
back to history
]
| Title of object: |
existence and uniqueness of solution of ordinary differential equations |
| Canonical Name: |
ExistenceAndUniquenessOfSolutionOfOrdinaryDifferentialEquations |
| Type: |
Theorem |
| Created on: |
2003-05-07 09:33:12 |
| Modified on: |
2005-02-12 14:03:23 |
| Classification: |
msc:34-00, msc:35-00, msc:34A12 |
Revision comment (for changes between this and next version):
| Changes for correction #7662 ('typo (fonction)'). |
Preamble:
% this is the default PlanetMath preamble. as your knowledge
% of TeX increases, you will probably want to edit this, but
% it should be fine as is for beginners.
% almost certainly you want these
\usepackage{amssymb}
\usepackage{amsmath}
\usepackage{amsfonts}
% used for TeXing text within eps files
%\usepackage{psfrag}
% need this for including graphics (\includegraphics)
%\usepackage{graphicx}
% for neatly defining theorems and propositions
%\usepackage{amsthm}
% making logically defined graphics
%\usepackage{xypic}
% there are many more packages, add them here as you need them
% define commands here
% The below lines should work as the command
% \renewcommand{\bibname}{References}
% without creating havoc when rendering an entry in
% the page-image mode.
\makeatletter
\@ifundefined{bibname}{}{\renewcommand{\bibname}{References}}
\makeatother |
Content:
Let $E\subset W$ where $E$ is an open subset of $W$ which is a normed vector space, and let $f$ be a continuous differentiable map
$$f: E \to W.$$ Then the ordinary differential equation defined as
$$\dot{x} = f(x)$$
with the initial condition
$$x(0) = x_0$$
where $x_0 \in E$ has a unique solution on some interval containing zero. More specifically there exists $\alpha>0$ such that the following is a unique fonction
$$x:(-\alpha,\alpha) \to E$$
such that $\dot{x}=f\circ x$ and $x(0)=x_0$.\cite{HS}
\begin{thebibliography}{1}
\bibitem[HS]{HS} Hirsch, W. Morris, Smale, Stephen.: Differential Equations, Dynamical Systems, And Linear Algebra. Academic Press, Inc. New York, 1974.
\end{thebibliography} |
|
|
|
|
|