Special functions-- Analysis-- Mathematics 61 Mathematics 12 Functions, Special 10 Calculus 5 Differential equations 5 Approximations -- expansions-- Mathematics 4 Differential equations, Partial 4 Mathematical analysis 4 Numerical solutions 4 Special functions; Analysis; Mathematics 4 Asymptotic expansions 3 Special functions 3 Boundary value problems 2 Differential equations-- Analysis-- Mathematics 2 Fourier analysis 2 Mathematical physics 2 Polynomials 2 Special functions-Integral transforms 2 Algorithms 1 Analyse (wiskunde) 1 Analysis(Mathematics) 1 Analysis- Mathematics 1 Approximation theory 1 Asymptotic theory 1 Convolutions (Mathematics) 1 Data processing 1 Dissertations, Academic (Ph.D) 1 Earth sciences 1 English poetry 1 Environmental sciences 1