We give a new sufficient condition for existence and completeness of wave operators in an abstract scattering theory. This condition generalizes both trace class and smooth approaches to the scattering theory. Our construction is based on estimates for the Cauchy transforms of operator-valued measures.
机构:
Institute of Mathematics,University of Wroclaw,Pl.Grunwaldzki 2/4,50-384 Wroclaw,PolandInstitute of Mathematics,Lodz University of Technology,ul.Wolczańska 215,93-005 Lodz,Poland