A representation formula related to Schrodinger operators
Abstract
Let H be a Schrodinger operator on the real line, where the potential is in L1 and L2. We define the perturbed Fourier transform F for H and show that F is an isometry from the absolute continuous subspace onto L2. This property allows us to construct a kernel formula for spectral operators. The main theorem improves the author's previous result for certain short-range potentials.
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