Geodesic
A test for the absence of the singular continuous spectrum in the Friedrichs model
Zapiski Nauchnykh Seminarov POMI, Boundary-value problems of mathematical physics and related problems of function theory. Part 14, Tome 115 (1982), pp. 61-71 
A. F. Vakulenko. A test for the absence of the singular continuous spectrum in the Friedrichs model. Zapiski Nauchnykh Seminarov POMI, Boundary-value problems of mathematical physics and related problems of function theory. Part 14, Tome 115 (1982), pp. 61-71. http://geodesic.mathdoc.fr/item/ZNSL_1982_115_a4/
@article{ZNSL_1982_115_a4,
     author = {A. F. Vakulenko},
     title = {A test for the absence of the singular continuous spectrum in the {Friedrichs} model},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {61--71},
     year = {1982},
     volume = {115},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1982_115_a4/}
}
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Voir la notice du chapitre de livre provenant de la source Math-Net.Ru

For the proof of the absence of the singular continuous spectrum in the manybody scattering problem, we suggest a new method using the analogue of the triangular interlacing operators in the inverse scattering problem.