Syllabus
Basic objectives of theory of approximation, proximinity, existence of the best approximation in normed linear spaces, convexity and its consequences, unicity of the best approximation in normed linear spaces, metric projection, interpolation of functions by polynomials, optimal distribution, the Weierstrass theorem, the Korovkin theorem, the Stone-Weierstrass theorems, Hermitte interpolation, the Fejer theorem, the Haar condition and its equivalence to the unicity of the best approximation.
Annotation
Basic course on theory of approximations. Suitable for master students of mathematical analysis.