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	<title>Rotation map - Revision history</title>
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	<updated>2026-05-20T10:28:08Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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		<id>https://en.formulasearchengine.com/index.php?title=Rotation_map&amp;diff=25893&amp;oldid=prev</id>
		<title>en&gt;Creidieki: /* Basic properties */ note that rot_G is an involution</title>
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		<updated>2012-05-02T22:13:59Z</updated>

		<summary type="html">&lt;p&gt;&lt;span class=&quot;autocomment&quot;&gt;Basic properties: &lt;/span&gt; note that rot_G is an &lt;a href=&quot;/index.php?title=Involution&amp;amp;action=edit&amp;amp;redlink=1&quot; class=&quot;new&quot; title=&quot;Involution (page does not exist)&quot;&gt;involution&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;In [[differential geometry]], a &amp;#039;&amp;#039;&amp;#039;Wente torus&amp;#039;&amp;#039;&amp;#039; is an [[immersion (mathematics)|immersed]] [[torus]] in &amp;lt;math&amp;gt;\mathbb{R}^3&amp;lt;/math&amp;gt; of constant [[mean curvature]], discovered by {{harvs|first=Henry C.|last=Wente|authorlink=Henry C. Wente|year=1984|txt}}.  It is a counterexample to the conjecture if [[Heinz Hopf]] that every [[closed manifold|closed]], [[compact space|compact]], [[constant-mean-curvature surface]] is a [[sphere]] (though this is true if the surface is [[embedding|embedded]]).  There are similar examples known for every positive [[genus (mathematics)|genus]].&lt;br /&gt;
&lt;br /&gt;
==References==&lt;br /&gt;
*{{Citation | last1=Wente | first1=Henry C. | authorlink = Henry C. Wente | title=Counterexample to a conjecture of H. Hopf. | url=http://projecteuclid.org/euclid.pjm/1102702809 | year=1986 | journal=[[Pacific Journal of Mathematics]] | volume=121 | pages=193–243 | mr = 0815044}}&lt;br /&gt;
*[http://www.math.utoledo.edu/wente_torus.html The Wente torus], University of Toledo Mathematics Department, retrieved 2013-09-01.&lt;br /&gt;
&lt;br /&gt;
{{DEFAULTSORT:Wente Torus}}&lt;br /&gt;
[[Category:Differential geometry of surfaces]]&lt;/div&gt;</summary>
		<author><name>en&gt;Creidieki</name></author>
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