On the wave equation with a large rough potential
classification
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equationlargeperturbedpotentialwavebelongingclassdecay
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We prove an optimal dispersive $L^{\infty}$ decay estimate for a three dimensional wave equation perturbed with a large non smooth potential belonging to a particular Kato class. The proof is based on a spectral representation of the solution and suitable resolvent estimates for the perturbed operator.
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