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Information × Registration Number 0201U003145, 0196U007096 , R & D reports Title Harmonic analysis of functions and operators popup.stage_title Head Trygub R.M., Registration Date 02-02-2001 Organization Donetsk State University popup.description2 Multiplicator of Fourier series and approximation by algebraic polynomials with limitations for coefficient are studied. The application of microlocal analysis technology in different problems of integral geometry.The positive definite functions depen ding on norm is studied.The class of symmetric operators admitting Friedrichs extensions is considered. Sufficient conditions completeness system of root vectors for boundary problems on final interval are discovered. FOURIER SERIES, POMPEIU PROBLEM, RESOLVENT Product Description popup.authors popup.nrat_date 2020-04-02 Close