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 Algebra i Analiz: Year: Volume: Issue: Page: Find

 Mark Grigor'evich Krein (photo) Research Papers On monotone families of $J$-contractive matrix functionsD. Z. Arov 3 Direct and inverse spectral problems for a Jacobi fieldYu. M. Berezanskii 38 The discrete spectrum in gaps of the perturbed periodic Schrödinger operator. II. Nonregular perturbationsM. Sh. Birman 62 Operator approach to approximation problemsV. I. Gorbachuk, M. L. Gorbachuk 90 Estimates for first-order derivatives for solutions of some classes of non-totally parabolic equationsN. M. Ivochkina, O. A. Ladyzhenskaya 109 Dichotomy and stability of undetermined nonlinear systems in Hilbert spacesA. L. Likhtarnikov, V. A. Yakubovich 132 Uniform approximation by harmonic differential forms. A constructive approachE. V. Malinnikova, V. P. Havin 156 A representation for the spectral shift function in the case of perturbations of fixed signA. B. Pushnitskii 197 The Cwikel–Lieb–Rozenblyum estimator for generators of positive semigroups and semigroups dominated by positive semigroupsG. Rozenblum, M. Solomyak 214