04-173 Randall Pyke
A Characterization of Bound States of Nonlinear Wave and Schrodinger Equations (333K, Postscript) Jun 1, 04
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Abstract. We prove for a class of nonlinear wave and Schrodinger equations that bound state solutions are almost periodic in time. As an application we show how to use this result to establish necessary conditions for the existence of bound states.

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