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Uniform simplification in a full neighborhood of a transition point. (English) Zbl 0297.34051
Mem. Am. Math. Soc. 149, 106 p. (1974).

MSC:
34E20 Singular perturbations, turning point theory, WKB methods for ordinary differential equations
34A30 Linear ordinary differential equations and systems, general
33C10 Bessel and Airy functions, cylinder functions, \({}_0F_1\)
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