Computing Scattering Resonances
Abstract
The question of whether it is possible to compute scattering resonances of Schr\"odinger operators - independently of the particular potential - is addressed. A positive answer is given, and it is shown that the only information required to be known a priori is the size of the support of the potential. The potential itself is merely required to be C1. The proof is constructive, providing a universal algorithm which only needs to access the values of the potential at any requested point.
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