TY - JOUR AU - N. A. Shirokov TI - A series of operators in $L^2(\mathbb C)$ proportional to unitary ones JO - Zapiski Nauchnykh Seminarov POMI PY - 2013 SP - 188 EP - 201 VL - 416 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ZNSL_2013_416_a10/ LA - ru ID - ZNSL_2013_416_a10 ER -