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On nodal lines of Neumann eigenfunctions

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arxiv math/0203017 v1 pith:QR7WBIWS submitted 2002-03-02 math.AP math.PR

On nodal lines of Neumann eigenfunctions

classification math.AP math.PR
keywords neumannnodalbrowniancouplingdomaineigenfunctioneigenfunctionsline
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We present a new method for locating the nodal line of the second eigenfunction for the Neumann problem in a planar domain. The technique is based on the `mirror coupling' of reflected Brownian motions.

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