Geodesic
The Wigner--Eckart theorem and covariant operators
Teoretičeskaâ i matematičeskaâ fizika, Tome 13 (1972) no. 3, pp. 327-342

Voir la notice de l'article provenant de la source Math-Net.Ru

We study matrix elements that depend on functions in the Schwartz space of operators that are covariant with respect to a group (operators of the type of scalar field operators). We show that the matrix elements of such operators can be factorized in a weak sense into the Clebsch–Gordan coefficients of the group and reduced matrix elements. 
@article{TMF_1972_13_3_a3,
     author = {A. U. Klimyk},
     title = {The {Wigner--Eckart} theorem and covariant operators},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {327--342},
     publisher = {mathdoc},
     volume = {13},
     number = {3},
     year = {1972},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1972_13_3_a3/}
}
TY  - JOUR
AU  - A. U. Klimyk
TI  - The Wigner--Eckart theorem and covariant operators
JO  - Teoretičeskaâ i matematičeskaâ fizika
PY  - 1972
SP  - 327
EP  - 342
VL  - 13
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TMF_1972_13_3_a3/
LA  - ru
ID  - TMF_1972_13_3_a3
ER  - 
%0 Journal Article
%A A. U. Klimyk
%T The Wigner--Eckart theorem and covariant operators
%J Teoretičeskaâ i matematičeskaâ fizika
%D 1972
%P 327-342
%V 13
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TMF_1972_13_3_a3/
%G ru
%F TMF_1972_13_3_a3
A. U. Klimyk. The Wigner--Eckart theorem and covariant operators. Teoretičeskaâ i matematičeskaâ fizika, Tome 13 (1972) no. 3, pp. 327-342. http://geodesic.mathdoc.fr/item/TMF_1972_13_3_a3/