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 Ordinary Differential Equations Convergence of normalizing transformations of a nonautonomous system of differential equations with a small parameter multiplying the derivativeV. V. Basov 187 Sufficient conditions for the satisfaction of a Hilbert-type inequality in a system of root functions of a second-order ordinary differential operatorA. A. Malov 197 The truncation method in the construction of invariant tori of countable systems of differential equationsA. M. Samoilenko, Yu. V. Teplinskii 204 Decreasing perturbations that preserve the characteristic vectors of linear systemsO. P. Stepanovich 213 Partial Differential Equations A two-dimensional analogue of the Helmholtz resonator with ideally rigid wallsR. R. Gadyl'shin 221 Some boundary value problems for mixed loaded equations of second and third ordersV. A. Eleev 230 Control systems with distributed parameters in scales of Banach spaces. IV. I. Nazarov 238 Integral Equations and Integral-Differential The Volterra property and spectral properties of an inner superposition operatorE. S. Zhukovskii 250 On the composition of a Bessel-type integral operator with operators of fractional integro-differentiation and the solution of differential equationsA. A. Kilbas, S. A. Shlapakov 256 An operational method for solving some classes of integro-differential equationsYu. F. Luchko, S. B. Yakubovich 269 Numerical methods Efficient iterative methods for solving multidimensional problems in mathematical physics. IIV. N. Abrashin, I. A. Dzyuba 281 FD-schemes of any order of accuracy (uniform with respect to $\epsilon$) for singularly perturbed systems of second-order ordinary differential equations with piecewise-smooth coefficientsV. L. Makarov, V. V. Guminsky 292 On grid concentration in the solution of weakly singular integral equations by the cubic spline-collocation methodP. Uba 302 On the controllability of completely solvable discrete linear time-independent systemsO. V. Khramtsov 311 Projection-difference approximations for variational problems of pyroelectricity. II. Discretization and solvability of nonstationary problemsG. A. Shinkarenko 317 Short Communications On a property of solutions of a class of partial differential equationsS. A. Aldashev 327 The Neumann problem for elliptic second-order equations in unbounded domainsG. I. Aslanov 330 An optimal projection method for solving a class of integral equationsN. S. Gabbasov 333 Reduction to an ordinary Tricomi problem of one of its generalizations relating to a system of equationsM. G. Krasil'nikov 336 On the approximation of perturbed $C_0$-semigroupsS. I. Piskarev 339 On the eigenvalues of the Duffin–Kemmer equation and its analoguesO. Ya. Savchenko 342 On obtaining the best approximations to the solution of boundary value problemsA. T. Taldykin, E. A. Isakova 346 On the spectrum of some classes of differential operatorsN. B. Uskova 350 Global stability of the stationary set of the Hsu–Waltman dynamical systemV. G. Leonov 353 Integral representations of harmonic functions that satisfy generalized conjugacy conditions on a ray (interval)S. E. Kholodovskii 355 Chronicle Øêîëà-ñåìèíàð «Íåëèíåéíûå äèíàìè÷åñêèå-ñèñòåìû: êà÷åñòâåííûé àíàëèç è óïðàâëåíèå» (22–26 èþíÿ 1993 ã. Í. Íîâãîðîä) 358