Integral Transform Methods: A Critical Review of Various Kernels

Some general remarks about integral transform approaches to response functions are made. Their advantage for calculating cross sections at energies in the continuum is stressed. In particular we discuss the class of kernels that allow calculations of the transform by matrix diagonalization. A particular set of such kernels, namely the wavelets, is tested in a model study.
Comment: 7 pages, 2 figures. Contribution to the 23rd European Conference on Few-Body Problems in Physics Aarhus, Denmark, 8-12 August 2016