Separation of variables

With mixed partial derivatives, is it true that separation of variables wont work?

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- Dec 30th 2010, 01:32 PMdwsmithu_{xxyy}+u_{xx}+u_{yy}=0

Separation of variables

With mixed partial derivatives, is it true that separation of variables wont work? - Dec 30th 2010, 04:35 PMSudharaka