Published online by Cambridge University Press: 20 November 2018
It is a well-known fact in the theory of Appell's hypergeometric function of two variables F4, defined by
1
where |x|1/2 + |y|1/2 < 1, that it can be expressed interms of products of ordinary hypergeometric functions when γ + γ' = α + β + 1.
Supported by a Post-doctorate fellowship of the National Research Council of Canada.