@article{01750379, title = {Description of the structure of singular spectrum for Friedrichs model operators near singular point.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {25}, year = {2001}, pages = {25-40}, doi = {10.1155/S0161171201011668}, zbl = {1040.47003}, language = {en}, url = {http://dml.mathdoc.fr/item/01750379} }
Iakovlev, Sergui I. Description of the structure of singular spectrum for Friedrichs model operators near singular point.. International Journal of Mathematics and Mathematical Sciences, Tome 25 (2001) pp. 25-40. doi : 10.1155/S0161171201011668. http://gdmltest.u-ga.fr/item/01750379/