The hyperbolic hypergeometric functions

G. GASANEO; F. D. COLAVECCHIA; S. OTRANTO; C. R. GARIBOTTI

JOURNAL OF MATHEMATICAL PHYSICS

AMER INST PHYSICS

Lugar: New York; Año: 2001 vol. 42 p. 4971 - 4983

0022-2488

In this work we present a new function to represent the approximate solution of a system of three charged particles. This function is based on an extension to two variables of the confluent hypergeometric function 1F1 of Kummer and can be obtained using a method similar to that used by Appell and Kampé de Fériet. We analyze the general properties of the function such as integral representations, series expansions, and asymptotic limits. We also show that the proposed functions verify a relation similar to that satisfied by the exponential and trigonometric?hyperbolic ones. A generalization to n-dimension is also presented. The mathematical properties of the functions indicate that they are suitable to be included in computation of electronic emission in collision processes.