Differentsial'nye Uravneniya
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 Ordinary Differential Equations The Existence of a Positive Periodic Solution of the Wangersky–Cunningham Predator-Prey System Allowing for Periodic Changes in the EnvironmentV. I. Borzdyko 291 Conflict-Control Systems and Differential InclusionsS. A. Brykalov 298 Boundary Value Problems in Stationary Queueing Systems with Diffusion Intensity of the Input FlowN. I. Golovko, V. V. Katrakhov, T. A. Pisarenko 305 Curves of Separatrix Cycles of a Quadratic System. The Case of Three Antisaddles and One SaddleS. I. Dovnar, L. A. Cherkas 313 Positional Synthesis of Bounded Inertial Controls for Systems with One-Dimensional ControlV. I. Korobov, V. A. Skorik 319 Asymptotics of Solutions of Ordinary Differential Equations in the Degenerate CaseÈ. A. Nazirova 332 The Arrangement of Local Extrema of an Integral Curve of a Second-Order Ordinary Differential Equation on a PlaneI. P. Pavlotsky, B. I. Sadovnikov, M. Strianese 338 Necessary Conditions for the Existence of Global Solutions of Higher-Order Nonlinear Ordinary Differential InequalitiesJ. Hay 344 Partial Differential Equations On Stabilization of the Solution of the Cauchy Problem for Quasilinear Parabolic EquationsV. N. Denisov, A. B. Muravnik 351 On the Absence of Solutions of Systems of Quasilinear Elliptic InequalitiesG. Caristi 356 Group Classification of Nonlinear Evolution Equations: I. Invariance Under Semisimple Local Transformation GroupsV. I. Lahno, A. M. Samoilenko 365 Some Generalizations of the Bernstein TheoremE. Mitidieri, S. I. Pokhozhaev 373 The Group Properties of the Heat Equation. Inverse and Boundary Value ProblemsM. V. Neshchadim 379 The Dirichlet Problem with Asymptotic Conditions for an Elliptic System Degenerating at a Point. IS. Rutkauskas 385 The Wave Equation with a Boundary Control in the Case of Elastic Fixing. IV. V. Tikhomirov 393 On the Schauder Inequality for Linear Partial Differential Operators in $\mathrm R^n$V. M. Tyurin 404 Short Communications Factorization of Conservative Integral Convolution Type Operators with Slowly Decaying KernelsL. G. Arabadzhyan 408 The Ellipticity Problem for Systems of First-Order Partial Differential EquationsV. E. Balabaev 411 A Compact Formula for the Third Variation and Necessary Optimality ConditionsE. E. Barbashina 414 On the Problem of Analytic Construction of an Optimal Regulator with a Given Terminal SetV. B. Kovalevskii, S. M. Kozlov 416 On the $(m-m)$-Nonoscillation of Self-Adjoint Differential Equations in the Complex DomainG. M. Muminov 420 Regular Perturbations of a Class of Sobolev Type Linear EquationsG. A. Sviridyuk, N. A. Manakova 423 Systems of Differential Equations with Nonunique Solutions of the Cauchy ProblemS. L. Sobolevskii 426