Key points are not available for this paper at this time.
The factorization method enables us to calculate in an elementary way the discrete-discrete and discrete-continuous transition probabilities of hydrogen atoms by means of recurrence formulae. From a key intensity all others are found by a repeated application of an l-changing recurrence formula or an n^'-changing operator. The results are given: for l-changing in the formulae: (4. 2), (4. 3), for n^'-changing in the formulae: (5. 1), (5. 2) with (3. 2). Some of the formulae apply to more general matrix components.
Hull et al. (Fri,) studied this question.