Analytical expressions for some multiplicity-free isoscalar factors of Sf⊃Sf−1
L. R. Dai, Feng Pan, Jerry Paul Draayer · Journal of Mathematical Physics · 2002
An algebraic routine for the evaluation of analytical expressions for isoscalar factors (ISFs) of Sf⊃Sf−1 is formulated based on the linear equation method (LEM) and the analytical continuation of the rank f. As examples, ISFs of Sf⊃Sf−1 for the coupling [f−1,1]⋅[f−1,1], [f−1,1]⋅[f−2,2], [f−2,1,1]⋅[f−2,1,1] are tabulated. The results demonstrate that the number of ISF tables can be greatly reduced compared with corresponding numerical results produced using other methods.