Differential equations, Linear Asymptotic expansions 2 Differential equations, Partial 2 Numerical solutions 2 Asymptotic theory 1 Atmospheric radio refractivity 1 Banach spaces 1 Congresses 1 Electromechanical analogies 1 Errors, Scientific 1 Fourier series 1 Fourier transformations 1 Functional analysis 1 Functions 1 Jordan matrix 1 Linear topological spaces 1 Mathematical physics 1 Mechanics, Analytic 1 Radio measurements 1 Refractive index 1 Stability 1 Theory of distributions (Functional analysis) 1 Tracking radar 1 Transcendental functions 1 Transformations (Mathematics) 1 Vector spaces 1