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On graphical foliations and the global existence of Euler´s multiplier

  • Marco Kühnel and Michael Neudert
Published/Copyright: October 19, 2010
Analysis
From the journal Volume 30 Issue 4

Abstract

We present a criterion for the global existence of Euler´s multiplier for an integrable one-form taking into account the corresponding codim-1-foliation. In particular, the impact of inseparable leaves is considered. Here, we suppose that the foliation can be reduced to a graph. The properties of this graph are crucial for the global existence of the Euler´s multiplier. As applications we investigate some special cases in which the graph turns out to look very simple.


* Correspondence address: Albert-Ludwigs-Universit¨at, Mathematisches Institut, Eckerstr. 1, 79104 Freiburg, Deutschland,

Published Online: 2010-10-19
Published in Print: 2010-10

© by Oldenbourg Wissenschaftsverlag, Freiburg, Germany

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