Izvestiya Akademii Nauk SSSR. Seriya Matematicheskaya
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 Izv. RAN. Ser. Mat.: Year: Volume: Issue: Page: Find

 1990, Volume 54, Issue 6

 Breaking solitons. IVO. I. Bogoyavlenskii 1123 On the smoothness of solutions of differential equations at singular points of the boundary of the domainA. V. Babin 1134 Etale topologies of schemes over fields of finite type over $\mathbf Q$V. A. Voevodskii 1155 Versal deformations of differential forms of real degree on the real lineV. P. Kostov 1168 The identities of a group with nilpotent commutator subgroup are finitely basedA. N. Krasilnikov 1181 New explicit formulas for the norm residue symbol, and their applicationsL. V. Kuz'min 1196 The Boutroux ansatz for the second Painleve equation in the complex domainV. Yu. Novokshenov 1229 An inverse problem for a class of one-dimensional Shrodinger operators with a complex periodic potentialL. A. Pastur, V. A. Tkachenko 1252 Criteria for uniform invertibility of regular approximations of one-dimensional singular integral operators with piecewise continuous coefficientsV. S. Pilidi 1270 Free topological groups of metrizable spacesV. V. Uspenskii 1295 Holomorphic extension of CR-functions with singularities on a hypersurfaceA. M. Kytmanov 1320 Criteria for admissibility of rules of inference with parameters in the intuituonistc propositional calculusV. V. Rybakov 1331