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NINE PAPERS IN ANALYSIS TRANSLATED FROM RUSSIAN INTO ENGLISH: R-FUNCTIONS ANALYTIC FUNCTIONS MAPPING THE UPPER HALFPLANE INTO ITSELF; ON THE SPECTRAL FUNCTIONS OF THE STRING; CEBYSEV-MARKOV INEQUALITIES IN THE THEORY OF THE SPECTRAL FUNCTIONS OF THE VIBRATING STRING; ON LINEAR- FRACTIONAL TRANSFORMATIONS WITH OPERATOR COEFFICIENTS; DIVISORS AND MINORANTS OF OPERATOR FUNCTIONS OF BOUNDED FORM; A CERTAIN CLASS OF OPERATOR-VALUED ENTIRE FUNCTIONS; THE SPECTRUM OF ONE-DIMENSIONAL SINGULAR INTEGRAL OPERATORS WITH PIECEWISE CONTINUOUS COFFICIENTS; THE REDUCTION METHOD FOR OPERATORS IN HILBERT SPACE; A NOTE ON THE MULTISTAGE METHOD. VERY SCARCE.