TY  - JOUR
AU  - A. V. Rybkin
TI  - Trace for the pair of a contraction and a unitary operator
JO  - Funkcionalʹnyj analiz i ego priloženiâ
PY  - 1987
SP  - 85
EP  - 87
VL  - 21
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/FAA_1987_21_4_a15/
LA  - ru
ID  - FAA_1987_21_4_a15
ER  -