Talk:Minkowski's question-mark function: Difference between revisions

Revision as of 21:30, 15 May 2008

Revision as of 03:50, 8 May 2009

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{{Sys rating|class=start|importance=mid|field=Chaos theory}}

== About the derivatives ==

<pre>It does not have a well-defined derivative, in the classical sense, on the irrationals;</pre>That's impossible! Any monotonic function has a derivative almost everywhere. --[[User:A dergachev|a_dergachev]] ([[User talk:A dergachev|talk]]) 03:50, 8 May 2009 (UTC)

== Comments 2005 ==

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Is this function really absolutely continuous?

:The Denjoy's article says it's purely singular. (See also [http://mathworld.wolfram.com/MinkowskisQuestionMarkFunction.html mathworld]) --[[User:A dergachev|a_dergachev]] ([[User talk:A dergachev|talk]]) 03:50, 8 May 2009 (UTC)

== question/correction? ===