Watson G.N. — Treatise on the Theory of Bessel Functions | 8. See also Asymptotic expansions, Method of stationary phase and Method of steepest descents, Arbitrary functions, expansions of, see Neumann series and Kapteyn series (for complex variables), Dini series, Fourier — Bessel series, Neumann series and Schloemilch series (for real variables) |