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Information × Registration Number 0211U007575, 0106U000042 , R & D reports Title Geometric, topological and approximate problems of the function theory popup.stage_title Head Ryazanov Vladimir Illich, Registration Date 13-07-2011 Organization Institute of Applied Mathematics and Mechanics of National Academy of Sciences of Ukraine popup.description2 It was proved a series of new criteria for existence of regular solutions to general Beltrami's equations and, in particular, to Beltrami's equations of the second type that take a significant part in many problems of mathematical physics; it was also obtained asymptotically sharp estimates of approximation for some classes of singular integrals by polynomials and new sharp inequalities of the Kolmogoroff type; criteria of finiteness, compactness and boundedness of the tangent spaces for arbitrary metric spaces, theorems on extension to the boundary of homeomorphisms, theorems of the type of Liouville, Picard, Sohotskoho-Weierstrass. Product Description popup.authors Бабенко Владислав Федорович Волчков Валерій Володимирович Гутлянський Володимир Якович Довгоший Олексій Альфредович Ковтонюк Денис Олександрович Коломойцев Юрий Сергійович Кузнецова Ольга Іванівна Моторний Віталій Павлович Очаківська Оксана Олександрівна Салімов Руслан Радікович Севостьянов Євген Олександрович popup.nrat_date 2020-04-02 Close