Mathematics – Analysis of PDEs
Scientific paper
2005-10-15
Mathematics
Analysis of PDEs
24 pages
Scientific paper
10.1007/s00220-006-0101-6
We provide a uniform decay estimate of Morawetz type for the local energy of general solutions to the inhomogeneous wave equation on a Schwarzchild background. This estimate is both uniform in space and time, so in particular it implies a uniform bound on the sup norm of solutions which can be given in terms of certain inverse powers of the radial and advanced/retarded time coordinate variables. As a model application, we show these estimates give a very simple proof small amplitude scattering for nonlinear scalar fields with higher than cubic interactions.
Blue Pieter
Sterbenz Jacob
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