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Asymptotic expansions and Stokes multipliers of the confluent hypergeometric function Φ2, I

Published online by Cambridge University Press:  14 November 2011

Shun Shimomura
Affiliation:
Department of Mathematics, Faculty of Science and Technology, Keio University, Hiyoshi, Kohoku-ku, Yokohama 223, Japan

Synopsis

The confluent hypergeometric function Φ2(β,β′, γ, x, y) satisfies a system of partial differential equations which possesses the singular loci x = 0, y = 0, x − y = 0 of regular type and x = ∞, y = ∞ of irregular type. Near x = ∞ (|y| is bounded) and near y = ∞ (|x| is bounded), asymptotic expansions and Stokes multipliers of linearly independent solutions of the system are obtained. By a connection formula, the asymptotic behaviour of Φ2(β,β′, γ, x, y) itself is also clarified near these singular loci.

Type
Research Article
Copyright
Copyright © Royal Society of Edinburgh 1993

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References

1Erdélyi, A.. Integration of a certain system of linear partial differential equations of hypergeometric type. Proc. Roy. Soc. Edinburgh 59 (1939), 224241.CrossRefGoogle Scholar
2Erdelyi, A.. Some confluent hypergeometric functions of two variables. Proc. Roy. Soc. Edinburgh 60(1940), 344361.CrossRefGoogle Scholar
3Erdelyi, A., Magnus, W., Oberhettinger, F. and Tricomi, F. G.. Higher Transcendental Functions, Vols 1 and 2 (New York: McGraw-Hill, 1953).Google Scholar
4Majima, H.. Stokes structure of the confluent hypergeometric differential equations in two variables and resurgent equations (preprint).Google Scholar
5Wasow, W.. Asymptotic Expansions for Ordinary Differential Equations (New York: Interscience, 1965).Google Scholar