Geodesic

Sommaire du Fascicule no. 1

Localization of spectral expansions corresponding to elliptic operators with constant coefficients
p. 3-7
A mixed problem for a higher-order equation that degenerates on the boundary of the domain
p. 7-14
Some model problems connected with problems on oscillations of a viscous fluid in an elastic vessel
p. 14-19
Stabilization of the solution of the Cauchy problem for parabolic equations
p. 20-41
Estimates of anti-a priori type that are sharp with respect to order for eigen- and associated functions of the heat conduction operator
p. 41-45
Riesz summability of continuous functions in Nikol'skiǐ classes
p. 46-56
The spectrum of a mixed problem for an equation of mixed type
p. 56-60
Convergence of spectral expansions of functions of the class $H_p^\alpha$, corresponding to nonnegative selfadjoint extensions of the Sturm–Liouville operator
p. 61-68
Numerical solution of one-dimensional singular integral equations
p. 68-73
Approximation of the classical solution of the Darboux problem by smooth solutions
p. 73-87
Dynamic problems of thermoelasticity for anisotropic homogeneous media
p. 87-98
Inverse Cauchy problem for linear hyperbolic systems
p. 98-104
Boundary value problems for hyperbolic-parabolic equations
p. 104-115
Some boundary value problems for an analogue of the Euler–Poisson–Darboux equation
p. 115-124
Uniform convergence of spectral expansions of functions in $H^\alpha_{(p_1,p_2)}$
p. 124-128
Existence, uniqueness and approximate solution of a boundary value problem for an equation of mixed type
p. 128-132
General boundary value problem for a system of differential equations in a half plane with violation of Ya. B. Lopatinskiǐ's condition
p. 132-141
A boundary value problem for the Holmgren equation in an unbounded domain
p. 142-147
Smoothness of the solution of the Cauchy problem for a $2p$-parabolic equation
p. 147-154
Some boundary value problems with an unknown boundary for mixed parabolic-hyperbolic equations of second and third orders
p. 154-161
Multidimensional strongly connected elliptic systems of partial differential equations
p. 162-167
Properties of solutions of partial differential equations that decompose into factors with singularities
p. 168-171
Spectral analysis of a class of nonselfadjoint operators
p. 171-172
Boundary value problems for an eight-dimensional analogue of the Cauchy–Riemann system
p. 172-174
Completeness of the root functions in some eigenvalue problems for fourth-order equations of mixed type
p. 174-176
The Cauchy problem for a fourth-order degenerate quasilinear hyperbolic equation
p. 177-179

Sommaire du Fascicule no. 2

Investigation of the problem of the center and focus in one case
p. 187-197
The highest $\sigma $-exponent of linear differential equations
p. 197-207
Oscillatory properties of solutions of a nonlinear system of second-order ordinary differential equations
p. 207-214
The spectrum of a nonselfadjoint singular differential operator
p. 215-219
Coefficient stability of systems of ordinary differential equations
p. 220-229
Qualitative investigation of a system in the space $\mathbf R^3$
p. 229-233
Lyapunov's function and dichotomy on semiaxes of linear systems of differential equations
p. 233-241
Typical properties of conditional exponential stability. IV
p. 241-257
A boundary value problem for linear differential-difference equations
p. 257-263
Boundary value problems for differential equations, which contain a parameter, with multiple roots of the characteristic equation
p. 263-273
Some integrable equations with a small parameter that are close to Liénard's equation
p. 274-278
Nonessential sets of the Dirichlet problem
p. 279-288
Global solution of a first-order partial differential equation. II
p. 288-302
Characteristic problem for the massive wave equation
p. 302-308
Linear equations in spaces of generalized periodic functions
p. 308-315
The Neumann problem for the Helmholtz operator in the exterior of a thin body of revolution
p. 316-324
Uniqueness of the determination of dielectric and magnetic permeabilities in an anisotropic one-dimensionally inhomogeneous medium
p. 325-332
A problem of Tricomi type for equations of mixed type with strong characteristic degeneration
p. 333-337
Weighted imbedding theorems and their application to estimates of solutions of equations of elliptic type
p. 337-343
Attraction of solutions of an ordinary differential system
p. 344-347
Asymptotic behavior of the solutions of higher-order ordinary differential equations with a turning point
p. 347-349
Some properties of solutions of a class of systems of nonlinear differential equations
p. 349-351
Asymptotic integration of hyperbolic equations with weakly nonlinear perturbation
p. 351-353
Systems of three differential equations whose solutions do not have essentially singular points
p. 353-354
О семинаре по качественной теории дифференциальных уравнений в Московском университете
p. 355-362

Sommaire du Fascicule no. 3

Variational approach to the problem of the control of the spectrum of conservative dynamical systems
p. 371-375
Completeness of eigenfunctions of an ordinary differential pencil of non-Keldysh type
p. 375-382
The structure of impulse-sliding modes under perturbations of measure type. I
p. 382-392
A general boundary value problem for an $m$-order ordinary differential equation in the class of generalized functions
p. 392-398
Formal representations of solutions of a class of linear homogeneous differential equations
p. 398-408
Annular domains that contain limit cycles
p. 408-413
$\varepsilon $-controllability of linear systems in a Banach space and moment inequalities
p. 413-417
Algebroidal solutions of differential equations with algebroidal coefficients
p. 417-425
Algebraic differential equations that have meromorphic solutions
p. 425-433
Stability of a terminal set and optimality of pursuit time in differential games
p. 433-446
Obstacles to linearization
p. 446-450
A boundary value problem for a singular equation
p. 450-455
Convergence of the solution of a singularly perturbed mixed problem for a hyperbolic system on the plane in the case of branching of the solution of the degenerate problem. III
p. 456-470
Conjugate Green operators and correct solvability of parabolic boundary value problems in negative Hölder spaces
p. 470-481
Lower bounds for the number of solutions of some boundary value problems
p. 481-489
Solution of a one-dimensional Cauchy problem for a second-order parabolic system with discontinuous coefficients
p. 489-502
Asymptotic properties of the solution of the Cauchy problem for a first-order quasilinear equation
p. 502-508
On the loss of smoothness of differential operators in the case of $G$-convergence
p. 508-513
Initial-boundary value problem for equations of the type of oscillations of a plate in a region whose boundary contains manifolds of different dimensions
p. 513-522
Transformation theory of holomorphic differential equations
p. 523-525
A method for solving problems of the theory of filtration of a liquid in fissured rock
p. 525-527
Degree of decrease of periodic solutions of a quasilinear equation
p. 527-530
Plane stationary problem of the theory of heat conduction for a composite wedge-shaped region
p. 530-533
Transformations of two-layer difference operators
p. 533-536
Construction of periodic solutions of differential equations
p. 536-539
Local sections and the maximum principle for difference inclusions
p. 539-541
Inversion formulas for modified Kontorovich–Lebedev integral transformations
p. 542-546

Sommaire du Fascicule no. 4

An integral of Malkin type and new cases of the center of a fractionally-cubic differential equation
p. 555-562
A linear functional-differential equation. Continuous dependence on parameters
p. 562-570
The Green function of a problem on bounded solutions for linear systems of differential equations
p. 570-577
Positive solutions of linear functional-differential equations
p. 578-584
Approximation of control systems of neutral type by ordinary control systems
p. 585-593
A linear differential game of approach with a nonconvex target set
p. 593-597
Existence of a solution in optimal problems described by nonlinear functional-differential equations
p. 597-604
Asymptotic behavior of solutions of differential inclusions
p. 604-613
Asymptotic stability of invariant solutions of nonlinear equations of heat conduction with a source
p. 614-632
Construction of function spaces by means of the Laplace operator and the averaging method
p. 632-641
Theorems on the sign of a derivative for a second-order elliptic-parabolic equation
p. 641-652
Reduction of the Cauchy problem for the wave equation to the Cauchy problem for a system of first-order equations
p. 653-659
Estimate of the derivative of a harmonic function and weighted imbedding theorems connected with it
p. 659-666
Regularity of solutions of problems of the theory of plastic flow
p. 667-676
Optimal coordinate functions in the finite element method
p. 677-688
Stability of difference schemes in Cauchy problems with almost periodic solutions
p. 689-695
Approximation of the solution of the Helmholtz equation by the solution of an equation of Schrödinger type
p. 695-706
Uniqueness of the solution of an inverse problem for the transport equation in the class of analytic functions
p. 707-710
A nonlocal problem for the Lavrent'ev–Bitsadze equation
p. 710-711
A boundary value problem for a nonlinear multidimensional equation of mixed-composite type
p. 712-714
A nonstationary system connected with the Bitsadze equation
p. 714-716
Systems of second-order partial differential equations
p. 716-719
Resonance properties of energy in the whole space
p. 719-721
Oscillation of solutions of partial differential equations with deviating argument
p. 721-723
On the notion of a strongly connected elliptic system
p. 723-726
Semiregularly degenerate equations with polynomial coefficients
p. 726-729

Sommaire du Fascicule no. 5

Construction of Lyapunov functions as $m$th order forms
p. 739-745
The structure of impulse-sliding modes under perturbations of measure type. II
p. 745-753
Typical properties of conditional exponential stability. V
p. 753-779
Distribution of stable and unstable manifolds of hyperbolic systems
p. 779-785
Solutions of systems of linear differential equations with an irregular singular point
p. 786-792
Sharp bounds for characteristic indices of second-order linear systems with bounded perturbations
p. 792-797
Qualitative investigation of a system with three centers
p. 797-801
Group pursuit in differential-difference games
p. 802-810
The principle of the smoothing functional for solution of equations of the first kind with monotone operators
p. 811-817
Multidimensional inverse problems for the transport equation
p. 817-824
Existence of a solution to the Cauchy problem for a system of Vlasov equations
p. 824-830
On the existence of a solution in problems of nonlinear vibrations of shallow shells with rotational inertia taken into account
p. 830-838
Well-posedness of a mixed problem for a vector wave equation
p. 838-843
Properties of second-order derivatives of thermal potentials for an equation of parabolic type
p. 844-851
Optimal control of distributed parameter systems described by nonsmooth Goursat–Darboux systems with constraints of inequality type
p. 851-860
Singularities of a solution of an initial-boundary value problem for a vibrating-plate equation near the boundary
p. 860-870
Estimates of solution of equations of elliptic type in the metric of $L_p$, $1$
p. 870-876
Algorithms for numerical solution of linear integro-differential equations based on their reduction to integral equations
p. 877-879
Nonlinear systems of second-order differential equations with special right-hand sides
p. 879-882
The structure of the generalized solution of the quasistationary one-dimensional Stefan problem
p. 882-885
Regularization of singular integral operators with Carleman shift
p. 885-886
The Lyapunov exponent of solutions of a linear differential system with random heterogeneity
p. 887-889
On the approximate solution of interior boundary value problems with shift
p. 889-892
Complete controllability of systems with aftereffect in elementary classes of functions
p. 892-895
Reconstruction of a second-order ordinary differential equation from two spectra
p. 895-897
Nonextremality of families of curves defined by dynamic equations of nonholonomic Chaplygin systems
p. 897-899
On the solution of a problem of heat conduction
p. 899-901
On the formulation of the Cauchy problem with data at infinity
p. 901-904
On periodic solutions of a system of equations
p. 904-905
О семинаре по качественной теории дифференциальных уравнений в Московском университете
p. 906-913

Sommaire du Fascicule no. 6

Moving and fixed singularities of solutions of certain nonautonomous systems
p. 923-929
Asymptotic solutions of singularly perturbed problems with weak nonlinearity in the case of nonidentical resonance
p. 930-941
Global investigation of a nonautonomously perturbed nonlinear oscillator
p. 941-952
Representation of solutions of differential equations by modified Lie series
p. 952-958
Asymptotic representations of solutions of a class of linear differential equations
p. 958-967
Abel–Poisson means of spectral expansions of the Sturm–Liouville problem
p. 967-980
Generic properties of conditional exponential stability. VI
p. 980-991
Continuity of the minimum of an integral functional in a nonlinear problem of optimal control
p. 991-995
Nonoscillation of solutions and the sign of the Green function
p. 995-1005
Solution of a mixed problem of diffraction of a vertical dipole by a circular opening in a flat screen in the presence of a circular disc coaxial to it
p. 1006-1012
A problem with nonlocal boundary conditions for systems of partial differential equations with constant coefficients
p. 1012-1023
A mixed problem for an equation describing the propagation of sound in a viscous gas
p. 1023-1035
Inverse problems in the “large” and Carleman estimates
p. 1035-1041
Reduction of a mixed problem of potential theory
p. 1041-1049
Systems of renewal integral equations
p. 1050-1055
Approximate solution of certain systems of singular integral equations with shift
p. 1055-1060
Transformation operators in a bicylinder of solutions of certain integro-differential equations
p. 1060-1069
An integral equation of potential theory
p. 1070-1081
Fundamental system of solutions for the operator $L_n=(z\frac{d}{dz})^n+z$
p. 1082-1083
Condition for uniform boundedness of globally extendable solutions of quasihomogeneous systems
p. 1083-1086
Continuous dependence of periodic solutions of a differential inclusion on the right-hand side
p. 1086-1088
Lower bounds for the minimum number of switching points
p. 1088-1090
A special third-order differential equation with fixed critical points
p. 1090-1092
Solution of an ill-posed Cauchy problem for a second-order operator-differential equation
p. 1092-1095
Asymptotic expansions with respect to the spectral parameter of solutions of linear differential equations in the case of roots of the characteristic equation
p. 1095-1097

Sommaire du Fascicule no. 7

Difference methods in problems of light-induced diffraction in nonlinear media
p. 1107-1118
Convergence of difference schemes for two-dimensional equations of gas dynamics taking account of gravitation in an acoustic approximation
p. 1119-1127
Algorithms for the solution of a three-temperature hydrodynamics equation system in the SAFRA applied-program block
p. 1127-1135
Implicit difference schemes for nonstationary Navier–Stokes equations in variables of the flow-vortex function
p. 1135-1144
The order of convergence of difference schemes for weak solutions of the heat equation in an anisotropic inhomogeneous medium
p. 1144-1151
The global iteration method for computation of mixed flows of a viscous gas
p. 1151-1156
An equation of the dynamics of a viscous stratified fluid
p. 1156-1165
The method of suppression of network viscosity in the solution of the Navier–Stokes equations
p. 1165-1173
Stability of variational-difference schemes of gas dynamics
p. 1173-1181
Guaranteed estimate of the common and remainder terms of an expansion of the solution of the Cauchy problem in a Taylor series
p. 1181-1193
Grids adapted to the solution of elliptic problems in the plane
p. 1194-1203
Convergence of difference schemes for the two-dimensional Navier–Stokes equations for an incompressible fluid in vortex-flow function-angular velocity variables
p. 1203-1213
Numerical modeling of a process of internal resonance frequency doubling of optical radiation
p. 1213-1221
General-covariant form of Hamilton's principle for relativistic magnetohydrodynamics in Euler variables
p. 1221-1230
Parallel algorithms for iteration methods with a factorized operator for the solution of elliptic boundary value problems
p. 1230-1237
Difference approximation of a nonlinear nonstationary variational inequality
p. 1237-1247
Direct method of solution of the Neumann problem for the Poisson equation
p. 1247-1253
Phase method of determination of eigenvalues for the Dirac equation
p. 1253-1258
Numerical methods for a two-dimensional problem with a nonlocal condition
p. 1258-1266
Convergence of the collocation method and the method of mechanical quadratures for singular integral equations given on a Lyapunov contour
p. 1267-1275
Stable difference schemes for a system of Navier–Stokes equations
p. 1276-1279
Absence of peaked self-similar structures in a medium with a source under constant heat conduction
p. 1279-1281
Symmetric solutions of the Kuramoto–Tsuzuki equation
p. 1281-1283

Sommaire du Fascicule no. 8

Minimax mean-square estimates in statistically indeterminate systems
p. 1291-1297
A package with variable control variations. I
p. 1297-1308
Stability of certain classes of solutions of polynomial systems
p. 1308-1318
Invariance of action and inverse problems of dynamics
p. 1318-1325
Periodic solutions of a special differential system
p. 1326-1332
Investigation of singular controls in systems with delay by means of matrix impulses
p. 1332-1341
Investigation of the stability of oscillatory systems
p. 1341-1348
The problem of correction of the motion of a quasilinear system under quadratic constraints
p. 1348-1359
Integrals of a system with homogeneous nonlinearities of the third degree in cases of a center
p. 1360-1365
Generic properties of conditional exponential stability. VII
p. 1366-1376
Optimization of systems of differential equations with nonsmooth right-hand sides under conditions of indeterminacy with respect to initial data
p. 1376-1388
Problems of pursuit and evasion in differential and discrete $n$-person games with integral constraints
p. 1388-1396
Estimation of the smallest eigenvalue for an elliptic operator
p. 1397-1403
The Dirichlet problem for the Helmholtz operator in the exterior of a thin body of revolution
p. 1403-1411
A mixed problem of diffraction of a vertical dipole by a disk and an opening in a flat screen, separated by different media
p. 1411-1416
A priori estimation of the solution of a parabolic equation
p. 1416-1426
An interior problem for the diffusion equation in $3$-dimensional space
p. 1427-1429
A complex cycle twice passing through a simple saddle
p. 1429-1431
Some sufficient conditions for the existence of a solution of a functional-integral equation
p. 1431-1433
Asymptotic behavior of the solution of difference equations of two variables
p. 1433-1437
Почти периодические решения линейных вполне интегрируемых уравнений
p. 1437-1438
Специальные классы решений шестого уравнения Пенлеве
p. 1438-1439
Some methods of approximate solution of a four-element generalized Riemann boundary value problem
p. 1439-1441
A class of linear differential games with a constraint on the number of switchings
The spectrum of a multipoint boundary value problem
p. 1443-1444
Asymptotic behavior of the spectrum of a singular integro-differential operator
p. 1444-1447
Riesz summability of expansions in eigenfunctions of the Schrödinger operator with a critical exponent
p. 1447-1448
О связи между первым и вторым методами Ляпунова исследования устойчивости движения
p. 1449-1450
Об одном способе приближенного решения уравнения Хилла с малым параметром
p. 1450-1452
Asymptotic stability of certain two-dimensional linear systems
p. 1452-1454
Periodic and quasiperiodic solutions of linear differential equations
p. 1455-1456
Solution of linear homogeneous differential equations with variable coefficients of a certain class
p. 1457-1459
A coordinate system for closed shells of revolution
p. 1459-1461
An algorithm for approximate solution of singular integral equations
p. 1462-1465

Sommaire du Fascicule no. 9

Potential methods in the theory of elasticity
p. 1475-1488
A determination of the cost of a differential game
p. 1489-1495
Stability of the solution set of nonlinear boundary value problems
p. 1495-1501
Exact and truncated difference schemes for a fourth-order ordinary differential equation
p. 1502-1514
A boundary value problem for systems of nonlinear ordinary differential equations with singularities
p. 1514-1523
Minimax control and stochastic maximin
p. 1523-1529
The choice of nodes in the approximate solution of boundary value problems by the spline-collocation method
p. 1529-1534
Observability of linear time-independent systems with delay
p. 1534-1539
A first-order operator-differential equation with delay in a Roumieu space
p. 1540-1548
Some generalizations of L. S. Pontryagin's square lemma
p. 1548-1555
The structure of the boundary of the stable set in the case of nontransversal intersection of the stable and unstable manifolds
p. 1556-1561
Existence of a fixed point of a nonlinear operator
p. 1561-1565
The convergence phenomenon in complex systems of differential equations
p. 1566-1571
Estimates for solutions of homogeneous linear equations of elliptic type of arbitrary order with variable coefficients near the boundary of the domain
p. 1572-1577
Absolute summability by Riesz means, formed with respect to a fundamental function system of the Laplace operator, of functions from a Nikol'skiǐ class
p. 1577-1582
The existence of a solution to a nonlinear connected problem of thermoelasticity
p. 1583-1588
The Goursat problem for a pseudoparabolic equation
p. 1588-1596
Construction of the asymptotic behavior of the solution of the neutron transport equation for a cylindrical domain in the case of small length of the free path
p. 1596-1602
The discreteness of the spectrum of the first boundary value problem for a nonregular elliptic equation
p. 1602-1611
Duality in convex multivalued discrete systems
p. 1611-1620
An interior problem for an equation of parabolic type
p. 1621-1623
Periodic solutions of a special nonlinear differential system
p. 1623-1628
Autonomous quadratic systems of Painlevé type
p. 1628-1630
Construction of multiperiodic solutions of semilinear hyperbolic systems of partial differential equations by means of characteristics
p. 1630-1632
Some sufficient conditions for the existence of periodic solutions of nonlinear systems of two differential equations
p. 1632-1634
Reflecting function and classification of periodic differential systems
p. 1635-1638
On the question of equivalent transformations of linear differential-difference equations with constant coefficients
p. 1638-1640
Solutions of countable systems of differential equations
p. 1640-1642
Expansions in eigenfunctions of the Schrödinger operator with singular potential
p. 1642-1645
Investigation of the stability with respect to part of the variables of differential systems with homogeneous right-hand sides
p. 1645-1649

Sommaire du Fascicule no. 10

On the question of the well-posedness of an optimal control problem
p. 1659-1665
Bifurcation of separatrices of a saddle of the Lorenz system
p. 1666-1674
Reducibility of the Painlevé equations
p. 1674-1683
Control of time-dependent dynamic systems
p. 1683-1694
Domain of Noethericity of the operator $z^{n-r}\frac{d^n}{dz^n}$ in a space of entire functions
p. 1694-1703
Behavior of the solutions of higher-order ordinary differential equations in the neighborhood of a singular point
p. 1703-1709
General boundary value problems for a system of first-order ordinary differential equations in a class of generalized functions
p. 1709-1715
Qualitative investigation of critical cases of stability of motion
p. 1715-1720
On the theory of third-order systems without moving critical points
p. 1720-1726
Zeros of solutions of a nonlinear differential system
p. 1726-1732
Existence of classical periodic solutions of the wave equation. The relation of the number-theoretic character of the period and the geometric properties of solutions
p. 1733-1739
Solution of a quasilinear hyperbolic system
p. 1739-1744
A theorem on one-sided a priori boundary estimation for the solution of a second-order degenerate parabolic equation
p. 1744-1753
The Cauchy problem for a system of semilinear parabolic equations with balance conditions
p. 1753-1760
The inverse Cauchy problem for hyperbolic systems
p. 1760-1768
Nonlocal continuability of solutions of nonlinear integro-differential systems of equations of reactor kinetics
p. 1769-1782
Solvability of integro-differential correspondences
p. 1782-1788
A nonlinear boundary value problem for a system of arbitrary cardinality of second-order integro-differential equations
p. 1788-1799
Admissibility of certain pairs of spaces with respect to linear Volterra integral equations
p. 1800-1805
The relation between third-order systems without moving critical points and nonlinear partial differential equations
p. 1806-1809
Classification of singular points of the equation $y'=\frac{a_0x^2+a_1xy+a_2y^2}{b_0x^2+b_1xy+b_2y^2}$ Forster's method
p. 1809-1813
Optimal polynomial methods of solution of ordinary differential equations
p. 1813-1816
Completeness in $L_p$ of a system of eigen- and associated functions of elliptic operators in unbounded domains
p. 1816-1819
First integrals of a system of differential equations
p. 1819-1821
Representation and solvability of a differential correspondence
p. 1821-1823
The normal form on an invariant surface of a completely integrable Pfaffian system
p. 1824-1827
Criterion for asymptotic stability of linear difference systems
p. 1827-1829
Some questions of the stability of difference equations in Banach space with respect to all and to part of the variables
p. 1829-1833

Sommaire du Fascicule no. 11

Stability of completely integrable linear homogeneous Pfaffian systems
p. 1843-1852
Spectral expansions in eigenfunctions of an unbounded selfadjoint extension of the Sturm–Liouville operator with potential from the class $L_2^{\operatorname{loc}}$
p. 1852-1862
On the question of the strong stabilizability of contracting systems in Hilbert space
p. 1862-1869
Classes of third-order systems without moving critical points
p. 1869-1877
Stokes multipliers and asymptotic expansions of solutions of ordinary differential equations with an irregular singular point
p. 1877-1888
Generic properties of conditional exponential stability. VIII
p. 1889-1896
Structural stability of systems of differential equations
p. 1897-1906
The absence in the equation $P_1(x,y)dx=(y-P_3(x))dy$ of limit cycles surrounding three singular points
p. 1906-1910
A multipoint boundary value problem whose Green function changes sign in “checkerboard sign pattern”
p. 1910-1914
Iteration methods for solving linear singularly perturbed integro-differential equations
p. 1915-1920
Centralizers of vector fields and Poincaré diffeomorphisms
p. 1920-1924
Some two-dimensional mixed problems with an initial function that does not vanish for the conjugation conditions. I
p. 1925-1940
On the connection between stabilization of the Poisson integral, uniform on every compactum, and convergence of spherical Cesàro–Riesz means
p. 1940-1947
Uniqueness in the large of inverse problems for a class of differential equations
p. 1947-1953
The inverse Cauchy problem for an equation of elliptic type
p. 1953-1961
A variational method for solving boundary value problems for the wave equation
p. 1961-1968
Existence and regularity of one-sided boundary value problems for the linear theory of shallow shells
p. 1968-1975
A system of inequalities connected with elliptic and parabolic operators
p. 1975-1985
Maximal dissipativity of a higher-order differential operator with an unbounded operator coefficient
p. 1986-1989
The number of solutions of a system of partial differential equations
p. 1989-1992
An approximate method for solving elliptic equations
p. 1992-1993
A remark on effective conductivity for media with dispersion
p. 1993-1995
Formulas for regularized traces of second-order selfadjoint elliptic differential operators
p. 1995-1998
Rough singular points situated on the line of discontinuity of the right- hand sides of systems of differential equations
p. 1998-1999
A general approach to asymptotic integration of singularly perturbed initial value and boundary value problems for systems of linear ordinary differential equations
p. 1999-2003
Asymptotic integration of problems with multiple points of the spectrum
p. 2003-2006
Axisymmetric fields of stresses and displacements in the problem of the action of a concentrated force on a nonlinear half space
p. 2007-2009
On a comparison method for differential equations close to hyperbolic ones
p. 2009-2011
Necessary and sufficient conditions for formal reducibility
p. 2011-2013
An equation with semiregular degeneration
p. 2013-2015
Stability of the Levinson center of nonautonomous dissipative dynamical systems
p. 2016-2018

Sommaire du Fascicule no. 12

A bundle with variable control variations. II
p. 2027-2036
Existence of periodic solutions to a third-order nonlinear system
p. 2036-2042
Nonlinear evolution equations and equations of $P$-type
p. 2042-2048
Lyapunov functions for second-order autonomous systems of classes $5$–$7$
p. 2048-2053
Operator equations in the space of Beurling vectors
p. 2053-2061
The possibility of evading encounter in a critical case
p. 2061-2066
The resolvent of a singular differential operator with a turning point
p. 2066-2075
Infinite-order equations with subordinate terms, and embedding theorems
p. 2076-2087
Scattering of internal waves by an edge of an ice field. The case of finite depth
p. 2088-2095
A mixed boundary value problem on the diffraction of a horizontal magnetic dipole by a circular opening in a plane screen in the presence of a circular disk coaxial to it
p. 2095-2103
A theorem on an infinite derivative for a second-order parabolic equation with a nonnegative characteristic form
p. 2103-2112
A priori estimates for solutions of a problem with displacement for the Lavrent'ev–Bitsadze equation
p. 2112-2120
Control of the solution of some parabolic problems in the neighborhood of an unstable stationary solution
p. 2120-2130
Behavior of the solution of the biharmonic equation in the neighborhood of irregular points
p. 2130-2138
General boundary value problems for systems of partial differential equations in a half space in the class of generalized functions
p. 2138-2147
On the “erasure” of singularities of solutions to strongly elliptic systems
p. 2147-2152
Asymptotics of the sum of a Schlömilch series
p. 2153-2156
A priori estimation for solutions of a second-order parabolic system with measurable coefficients
p. 2156-2158
Stability in the large of a second-order periodic system of general form
p. 2158-2161
On almost periodic solutions of a class of analytic almost periodic systems in case of absence of resonance
p. 2161-2163
A problem with a directional derivative in S. L. Sobolev spaces of variable order
p. 2163-2164
Invertibility of functional operators with non-Carleman shift in Hölder spaces
p. 2165-2169
Two third-order equations with fixed critical points
p. 2169-2171
Completeness of eigenfunctions in the eigenvalue problem for a sixth-order equation of mixed-composite type
p. 2171-2173
Classes of systems with coinciding reflecting functions
p. 2173-2176
Periodic solutions of a matrix Riccati equation
p. 2176-2178
Asymptotic behavior of the solution of the Neumann problem in a ball of the space $\mathbf R^n$ as $n\to\infty$
p. 2178-2181
Some embedding theorems and their applications to nonlinear equations
p. 2181-2184
О семинаре по качественной теории дифференциальных уравнений в Московском университете
p. 2185-2189