The saddle-point method. (Metod perevala). (Russian) Zbl 0463.41020

Moskva: “Nauka”. 368 p. R. 1.70 (1977).


41A60 Asymptotic approximations, asymptotic expansions (steepest descent, etc.)
41A55 Approximate quadratures
41A63 Multidimensional problems
41-01 Introductory exposition (textbooks, tutorial papers, etc.) pertaining to approximations and expansions
42A38 Fourier and Fourier-Stieltjes transforms and other transforms of Fourier type
44A10 Laplace transform