Generalised Euler-Jacobi inversion formula and asymptotics beyond all orders / V. Kowalenko [and others].

Title from publisher's bibliographic system (viewed on 05 Oct 2015).

Introduction -- Exact evaluation of S[superscript r subscript p/q] (a) -- Properties of S[subscript p/q] (a) -- Steepest descent -- Special cases of S[subscript p/q] (a) for p/q <2 -- Integer cases for S[subscript p/q] (a) where 2 <̲ p/q <̲ 7 -- Asymptotics beyond all orders -- Numerics for terminant sums -- Conclusion.

This work, first published in 1995, presents developments in understanding the subdominant exponential terms of asymptotic expansions which have previously been neglected. By considering special exponential series arising in number theory, the authors derive the generalised Euler-Jacobi series, expressed in terms of hypergeometric series. Dingle's theory of terminants is then employed to show how the divergences in both dominant and subdominant series of a complete asymptotic expansion can be tamed. Numerical results are used to illustrate that a complete asymptotic expansion can be made to agree with exact results for the generalised Euler-Jacobi series to any desired degree of accuracy. All researchers interested in the fascinating area of exponential asymptotics will find this a most valuable book.