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Summary Let be the difference of a pair of adjacent eigen-values of the differential equation (1) for the spheroidal functions. Until now only the two first terms of the asymptotic expansion (2) of for large *2=–2 had been known. In this note the next term, i. e. the coefficient of *–2, is given, and the way of calculating it is described.

The preparation of this note containing partial results, was sponsored by the European Office Air Research and Development Command, U. S. Air Force, Project No. AF 61 (514)-443.  相似文献   

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Ohne ZusammenfassungHerrn A.Ostrowski zum 60. Geburtstag gewidmet  相似文献   

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