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	<id>https://murray.cds.caltech.edu/index.php?action=history&amp;feed=atom&amp;title=Flat_systems%2C_equivalence_and_trajectory_generation</id>
	<title>Flat systems, equivalence and trajectory generation - Revision history</title>
	<link rel="self" type="application/atom+xml" href="https://murray.cds.caltech.edu/index.php?action=history&amp;feed=atom&amp;title=Flat_systems%2C_equivalence_and_trajectory_generation"/>
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	<updated>2026-09-20T01:10:23Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://murray.cds.caltech.edu/index.php?title=Flat_systems,_equivalence_and_trajectory_generation&amp;diff=19927&amp;oldid=prev</id>
		<title>Murray: htdb2wiki: creating page for 2003d_mmr03-cds.html</title>
		<link rel="alternate" type="text/html" href="https://murray.cds.caltech.edu/index.php?title=Flat_systems,_equivalence_and_trajectory_generation&amp;diff=19927&amp;oldid=prev"/>
		<updated>2016-05-15T06:18:44Z</updated>

		<summary type="html">&lt;p&gt;htdb2wiki: creating page for 2003d_mmr03-cds.html&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;{{HTDB paper&lt;br /&gt;
| authors = Phillipe Martin, Richard Murray, Pierre Rouchon&lt;br /&gt;
| title = Flat systems, equivalence and trajectory generation&lt;br /&gt;
| source = CDS Technical Report&lt;br /&gt;
| year = 2003&lt;br /&gt;
| type =  Technical &lt;br /&gt;
  Report&lt;br /&gt;
| funding = &lt;br /&gt;
| url = http://www.cds.caltech.edu/~murray/preprints/mmr03-cds.pdf&lt;br /&gt;
| abstract = &lt;br /&gt;
Flat systems, an important subclass of nonlinear control systems introduced&lt;br /&gt;
via differential-algebraic methods, are de&amp;amp;#64257;ned in a differential&lt;br /&gt;
geometric framework. We utilize the in&amp;amp;#64257;nite dimensional geometry developed&lt;br /&gt;
by Vinogradov and coworkers: a control system is a diffiety, or more&lt;br /&gt;
precisely, an ordinary diffiety, i.e. a smooth in&amp;amp;#64257;nite-dimensional manifold&lt;br /&gt;
equipped with a privileged vector &amp;amp;#64257;eld. After recalling the de&amp;amp;#64257;nition of&lt;br /&gt;
a Lie-Backlund mapping, we say that two systems are equivalent if they&lt;br /&gt;
are related by a Lie-Backlund isomorphism. Flat systems are those systems&lt;br /&gt;
which are equivalent to a controllable linear one. The interest of&lt;br /&gt;
such an abstract setting relies mainly on the fact that the above system&lt;br /&gt;
equivalence is interpreted in terms of endogenous dynamic feedback. The&lt;br /&gt;
presentation is as elementary as possible and illustrated by the VTOL&lt;br /&gt;
aircraft.&lt;br /&gt;
&lt;br /&gt;
| flags = &lt;br /&gt;
| tag = mmr03-cds&lt;br /&gt;
| id = 2003d&lt;br /&gt;
}}&lt;/div&gt;</summary>
		<author><name>Murray</name></author>
	</entry>
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