Biorthogonal expansions of functions in series of exponents on intervals of the real axis

摘要

CONTENTSIntroductionChapter I. Non-harmonic Fourier series (behaviour on the initial interval)§ 1.1. Minimal systems of exponentials§ 1.2. Expansions of functions in,§ 1.3. Expansions of functions inComments and supplementsChapter II. Non-harmonic Fourier series (the behaviour on the real axis)§ 2.1. Extension of convergence of quasi-polynomials§ 2.2. Continuation of functions from the initial interval§ 2.3. Convergence and summability of non-harmonic Fourier series in the-norm () on every segmentComments and supplementsChapter III. Properties of the system§ 3.1. Basis properties§ 3.2. Angles between subspaces of exponentialsComments and suppl