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New special function recurrences giving new indefinite integrals
被引:7
|作者:
Conway, John T.
[1
]
机构:
[1] Univ Agder, Dept Engn & Sci, Grlmstad, Norway
关键词:
Recurrence relations;
Bessel functions;
associated Legendre functions;
parabolic cylinder functions;
D O I:
10.1080/10652469.2018.1499099
中图分类号:
O29 [应用数学];
学科分类号:
070104 ;
摘要:
Sequences of new recurrence relations are presented for Bessel functions, parabolic cylinder functions and associated Legendre functions. The sequences correspond to values of an integer variable r and are generalizations of each conventional recurrence relation, which correspond to r=1. The sequences can be extended indefinitely, though the relations become progressively more intricate as r increases. These relations all have the form of a first-order linear inhomogeneous differential equation, which can be solved by an integrating factor. This gives a very general indefinite integral for each recurrence. The method can be applied to other special functions which have conventional recurrence relations. All results have been checked numerically using Mathematica.
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页码:805 / 819
页数:15
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