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 Mat. Zametki: Year: Volume: Issue: Page: Find

 Ivan Matveevich Vinogradov (foto) Ivan Matveevich Vinogradov (on his 80th birthday) 251 A counterexample to the Hasse principle for a system of two quadratic forms in five variablesV. A. Iskovskikh 253 Lucas's criterion for the primality of numbers of the form $N=h2^n-1$S. B. Stechkin 259 Infinite-order differential equations with analytic solutionsA. F. Leont'ev 269 Hilbert's boundary-value problem (with coefficients from the Wiener ring) for matrix-valued functions analytic in the unit diskA. L. Lukov 279 A geometric property of functions starlike of order $\alpha$D. V. Prokhorov 287 An example of a function which is Denjoy integrable but not Khinchin summableV. S. Shul'man 295 Operators, absolutely indefinitely bounded below, in spaces with indefinite metricV. A. Senderov 301 The existence of solutions of generalized differential equationsA. F. Filippov 307 Some continuous decompositions of the space $E^n$Van Ny Kyong 315 Isometric immersions of a Euclidean plane in Lobachevskii spaceYu. A. Volkov, S. M. Vladimirova 327 Nonrigidity of certain composite surfaces of revolutionI. Ivanova-Karatopraklieva 333 Exact projective representations of Abelian groupsL. F. Barannik 345 An optimal problem in graph theoryM. A. Dukhovnyi 355 Generalization of the problem of the number of partitions of a finite setB. I. Selivanov 361