Use of Recursion Relations

Making use of recursive relations between them it is easy to see that all the above-mentioned functions, except Pq, increase unlimitedly with the distance from masses, 8 00 which contradicts the condition at infinity. Therefore, terms with E (/ ) have to be discarded too, and this gives one more simplification of Equation (2.132)... 

In our application, each time an entire set of has to be calculated, thus the use of recursion relation is computationally more efficient. The recursion relations are... 

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