Estimates for a slowly-varying wave equa
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Cathleen S. Morawetz
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Article
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1973
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John Wiley and Sons
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English
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Estimates for a Slowly-Varying Wave Equation with a Periodic Potential\* CATHLEEN S. MORAWETZ Consider the equation for t 2 0, where P ( t ) is a smooth function of period 2 ~. I n general the solutions of the homogeneous initial value problem will grow exponentially and so too will the solutions of