Numerically satisfactory solutions of Kummer recurrence relations |
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Authors: | Javier Segura Nico M Temme |
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Institution: | (1) Departamento de Matemáticas, Estadística y Computación, Universidad de Cantabria, 39005 Santander, Spain;(2) CWI, P.O. Box 94079, 1090 GB Amsterdam, The Netherlands |
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Abstract: | Pairs of numerically satisfactory solutions as for the three-term recurrence relations satisfied by the families of functions , , are given. It is proved that minimal solutions always exist, except when and z is in the positive or negative real axis, and that is minimal as whenever . The minimal solution is identified for any recurrence direction, that is, for any integer values of and . When the confluent limit , with fixed, is the main tool for identifying minimal solutions together with a connection formula; for , is the main tool to be considered. |
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Keywords: | Mathematics Subject Classification (2000)" target="_blank">Mathematics Subject Classification (2000) 33C15 39A11 41A60 65D20 |
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