Geodesic

Sommaire du Fascicule no. 1

Some local and nonlocal boundary value problems for the wave equation
p. 3-8
Potentials for $2p$-parabolic equations
p. 9-18
The initial value problem for the von K\'arm\'an equation in the large
p. 18-22
Problems with initial and characteristic conditions for hyperbolic equations with a nonlinear principal part
p. 22-27
The Dirichlet problem for an elliptic equation with an integrable lower-order coefficient and right-hand side
p. 27-30
Characteristic Goursat problem in the large for a class of quasilinear hyperbolic equations
p. 30-37
Well-posed formulation of boundary value problems for a class of third-order equations of parabolic-hyperbolic type
p. 37-50
Some boundary value problems in infinite domains for the wave equation
p. 51-55
Solvability of a mixed problem for second-order elliptic equations
p. 56-65
Selfadjoint boundary value problems for the Tricomi equation
p. 66-75
Spectrum of a boundary value problem with shift for the wave equation
p. 75-78
The Riemann--Hilbert problem for a holomorphic vector and its generalizations
p. 78-85
Loaded equations and their applications
p. 86-94
Boundary value problems of the Bitsadze--Samarski{\v\i} problem type for an equation of mixed type of the second kind with a nonsmooth line of degeneracy
p. 94-101
A priori estimates for solutions of quasilinear elliptic equations of arbitrary order
p. 101-110
The Tricomi problem for an equation of mixed type with a nonsmooth line of degeneracy
p. 110-119
The Cauchy problem for a degenerate system of composite type of first-order equations
p. 119-126
The first boundary value problem for an equation of mixed type in a rectangle
p. 127-134
Solvability of a problem of Goursat type for second-order normally hyperbolic systems with variable coefficients
p. 134-145
Some boundary value problems for a third-order equation and extremal properties of its solutions
p. 145-152
A type of degeneration of elliptic systems
p. 152-160
The Dirichlet problem for a second-order elliptic system that degenerates at a point
p. 161-163
A boundary value problem for a third-order equation with the nonlocal condition of A.\,M.~Nakhushev
p. 163-166
Characteristic problem for the Monge--Amp\`ere equation of hyperbolic type
p. 166-169
The spectrum of the Bitsadze--Samarski{\v\i} problem
p. 169-171
A nonlocal boundary value problem for the Laplace equation
p. 171-174
Всесоюзный симпозиум «Дифференциальные уравнения в~частных производных
p. 175-176
О~книге А.\,В.~Бицадзе «Некоторые классы уравнений в~частных производных»
p. 177-178

Sommaire du Fascicule no. 2

Vasili{\v\i} Sergeevich Vladimirov (on the occasion of his 60th birthday)
p. 187-195
Baire classes of functions and Lyapunov exponents.~XI
p. 196-214
Baire classes of functions and Lyapunov exponents.~XII
p. 215-220
The problem of deviation from an encounter in the critical case
p. 220-229
Asymptotic representation of the fundamental matrix of solutions of a system of ordinary differential equations with two parameters
p. 229-253
Central exponents of linear systems
p. 253-259
Singularly perturbed problems with a minimal pulse
p. 259-269
The controllability set of a linear equation
p. 269-278
The Sturm--Liouville problem with regular singular points.~II
p. 278-286
Asymptotic behavior of the solution of a boundary value problem for a diffusion equation in a half plane
p. 287-294
Property of the mean for the generalized equation of A.\,N.~Kolmogorov.~I
p. 295-304
Asymptotic behavior of the solution of an elliptic equation with small parameter in a region with a conic point
p. 305-318
Boundary values in $L_p$, $p>1$, of solutions of a second-order linear elliptic equation
p. 318-337
Mixed problems for an equation for propagation of disturbances in viscous media
p. 337-347
Behavior of the solution of the Cauchy problem for the equation $u_{xx}-q(x)u_{tt}=0$ for large time values~$t$
p. 347-353
Bifurcation of stable invariant tori from invariant tori of smaller dimensions
p. 354-357
Inversion of B.\,S.~Razumikhin's theorem
p. 357-359
The form of the highest $\sigma $-exponent of a linear system
p. 359-362
Construction of periodic solutions of ordinary differential equations
p. 362-364

Sommaire du Fascicule no. 3

Affine-invariant conditions for topological distinction of quadratic systems in the presence of a center
p. 371-379
Selfadjointness of a differential operator with periodic coefficients
p. 380-387
Asymptotic behavior of the fundamental matrix of solutions of a linear system of differential equations in the presence of turning points
p. 388-396
Some nonlinear boundary value problems
p. 396-414
A class of differential and functional equations
p. 414-419
Zones of capture and evasion in dynamic games of quality
p. 419-425
An aspect of the development of the theory of the anisotropic strict extremum principle of A.\,D.~Aleksandrov
p. 426-437
The behavior of solutions of second-order degenerate parabolic equations near a boundary point
p. 437-445
Investigation of a second-order elliptic operator in domains with an infinite boundary by means of the operator Sturm--Liouville equation.~I
p. 445-457
Nonlocal elliptic boundary value problems with degeneration
p. 457-470
Fundamental solutions for the potential of generalized Cauchy--Riemann systems of a certain class
p. 470-482
Localization of gas dynamic processes in the case of isentropic compression of a gas in a mode with peaking
p. 483-491
Some methods for solving the Stefan problem
p. 491-500
Numerical solution of some axially symmetric problems of the mathematical theory of elasticity by the finite difference method
p. 500-507
Generalized nonlinear interpolation and solution of boundary value problems
p. 508-515
A class of operator equations
p. 516-518
The problem of optimization with change of phase space
p. 518-521
Stability of the zero solution of a quasilinear nonautonomous system in the critical case
p. 521-523
The lattice method of solving boundary value problems of the theory of heat conduction
p. 523-525
On the Kuznetsov--Malgrange theorem
p. 525-528
On the theory of stability in the first approximation of completely integrable Pfaffian systems
p. 529-532
An extremum principle for a degenerate hyperbolic system
p. 532-535
Fundamental solution of a system of equations of statics of a cubically anisotropic medium
p. 535-537
The Cauchy problem for a second-order equation
p. 537-538
The Lyapunov function with a derivative of a special type for a linear system
p. 539-540
Analytic equivalence of systems of differential equations in the neighborhood of an exponentially stable invariant torus
p. 540-543
Stability of multifrequency systems in the case of resonance without synchronization of phase variables
p. 543-546

Sommaire du Fascicule no. 4

Stability of differential inclusions
p. 555-564
Minimal complete system of orthogonal invariants of a two-dimensional differential system
p. 564-569
A numerical-analytic method for investigating periodic solutions of a class of operator-differential equations
p. 569-575
On the theory of control of linear systems with lag
p. 575-581
Construction of minimizing sequences
p. 581-588
Bounded solutions of impulse systems
p. 588-596
Solutions of differential equations with deviating argument
p. 597-602
Inverse problem of the theory of wave propagation in a semi-infinite nonregular waveguide
p. 603-607
A class of nonlinear inverse problems with an unknown boundary
p. 608-617
Some questions of the theory of second-order elliptic equations on the plane
p. 618-621
The Cauchy problem for systems of parabolic equations with deviating argument
p. 621-628
Asymptotic behavior of the solution of a system of two linear magnetohydrodynamics equations with singular perturbation. II.~Complete asymptotic expansion
p. 628-644
Investigation of a second-order elliptic operator in domains with an infinite boundary by means of the operator Sturm--Liouville equation.~II
p. 645-653
Formulas for mutual re-expansion of fundamental solutions of the Laplace equation in polar and elliptic coordinates
p. 654-660
A problem on the decay of a discontinuity for a class of systems of three equations
p. 660-666
The problem of heat conduction with a derivative with respect to time in the boundary condition
p. 666-673
Variational inequalities in the theory of shallow shells
p. 673-679
Linear equations in spaces of Sobolov--Slobodetski{\v\i} type.~III
p. 680-683
On the question of admissibility of certain pairs of spaces for linear operators and Volterra equations
p. 684-692
On the theory of generalized Green operators
p. 693-694
Questions concerning the improvement of the convergence of series in the solution of second-order equations of parabolic type
p. 694-697
Darboux integrals and the analytic structure of solutions of differential equations
p. 697-700
Systems of two second order differential equations and partial differential equations of elliptic type
p. 700-703
Construction of the Riemann function for some hyperbolic equations
p. 703-706
Effective characteristics of a heat-conducting surface
p. 706-709
On a certain classical singularly perturbed problem of optimal control
p. 710-711
The first boundary value problem for a fourth-order equation with a nonnegative characteristic form
p. 712-714
Qualitative picture of a special system of two equations
p. 714-716
In the perturbation of a boundary value problem by terms with deviating argument the spectrum can vanish
p. 717-718
Estimates for the derivatives of associated Legendre functions and ultraspherical polynomials in the metric $L_p$, $1$
p. 718-720
Cycles of a differential equation with polynomials of the third degree
p. 720-722
Stability of the central indices of discrete difference equations
p. 722-723
Lev Dmitrievich Kudryavtsev (on the occasion of his sixtieth birthday)
p. 724-728
Letter to the editors: ``On the stability of solutions of a class of Hamiltonian systems with small changes of the function $H$'' [Differentsial'nye Uravneniya \textbf{18} (1982), no.~2, 219--234; MR 83j:58047]
Letter to the editors: ``Boundary of the attracting set of a periodic Axiom A-system'' [Differentsial'nye Uravneniya \textbf{17} (1981), no.~9, 1621--1629; MR 83d:58052]

Sommaire du Fascicule no. 5

Development of research in the USSR in the theory of stability of motion
p. 739-776
On the question of a functional-differential equation with an internal superposition operator
p. 777-782
On the theory of stability of ordinary differential systems and Pfaffian systems
p. 782-789
Impulse-sliding regimes in nonlinear dynamical systems
p. 790-799
The theory of global properties of $n$th-order ordinary linear differential equations
p. 799-808
Addition theorems and integral transformations on classes of harmonic functions
p. 809-818
A priori estimates for solutions of quasilinear parabolic equations in the plane and their applications
p. 818-828
Solution of a boundary value problem with mixed boundary conditions for a parabolic system
p. 828-834
Boundary value problems in a half space with a boundary condition at a point
p. 834-845
Estimates for solutions of equations of elliptic type in the $L_p$ metric
p. 845-851
Numerical solution of stationary problems of a viscous incompressible fluid
p. 852-860
Solution of nonstationary problems of heat conduction by the variational-difference method
p. 860-869
The method of dynamic potentials for the numerical modeling of nonstationary problems of hydrodynamics with free boundaries
p. 870-878
One-step numerical methods for solving systems of second-order linear integro-differential equations of Volterra type
p. 879-892
On the question of determination of one-sided delta functions in a complex domain
p. 893-896
On the time-optimality problem for differential inclusions
p. 897-898
Exponential growth of solutions of some partial differential equations
p. 899-901
Regularization of a system of boundary value problems
p. 901-904
Uniqueness of the limit cycle of the equation $(y-P_3(x))dy=P_1(x,y)dx$ in the presence of three singular points
p. 904-905
New theorems on the instability of difference systems in the first approximation
p. 906-908
Stability of characteristics of diagonal systems of differential equations
p. 909-911
Asymptotic equivalence of systems of ordinary differential equations and systems of differential equations with retarded argument
p. 911-914

Sommaire du Fascicule no. 6

The first condition in L.\,S.~Pontryagin's article: ``On the theory of differential games'' [Uspekhi Mat. Nauk \textbf{21} (1966), no.~4(130), 219--274; MR0204187]
p. 923-938
Regularized traces of a multipoint problem for higher-order ordinary differential operators
p. 938-944
Conditions for damping of solutions and the radiation principle for a differential equation with operator coefficients on the half axis
p. 944-954
Stability of nonlinear systems. I.~Star-monotonically increasing Lyapunov functions and stability of singular points of dynamical systems
p. 954-964
Synthesis of impulse control in the problem of quadratic optimization of linear systems
p. 965-971
Differential inclusions with small lag
p. 971-976
Construction of a force function from given partial integrals
p. 976-984
A priori estimates for the Tricomi and Darboux problems
p. 985-991
The Cauchy problem for the equation $u_t-\Delta u+uAu=f$
p. 991-1000
An effective method for solving the Dirichlet problem for the Laplace equation
p. 1000-1007
A variational boundary value problem for quasilinear equations of regular and irregular types
p. 1007-1018
A method for the asymptotic solution of pseudodifferential equations in the analysis of a stochastic process of birth and death type
p. 1018-1024
Compactness and pseudocompactness of singular pseudodifferential operators
p. 1025-1032
The Cauchy problem for parabolic differential-difference operators with variable coefficients
p. 1032-1039
Questions of the existence of a solution in problems of optimal control of leading coefficients of linear elliptic equations
p. 1040-1047
Transformation operators in a star-shaped domain of solutions of some integro-differential equations
p. 1048-1056
The collocation method for solving singular integral equations along a Lyapunov contour
p. 1056-1064
Volterra equations in a Banach space
p. 1064-1071
A two-dimensional inverse problem for an elliptic equation
p. 1072-1074
Identifiability of nonlinear systems
p. 1074-1078
The principle of the residual for nonlinear problems with monotone operators
p. 1079-1080
An existence and uniqueness theorem for the solution of a linear Volterra--Stieltjes integral equation of the first kind in the class of continuous functions of bounded variation
p. 1080-1084
Regularization of two-dimensional Volterra integral equations of the first kind
p. 1084-1086
An estimate for the solution of the Volterra integral equation
p. 1086-1089
Generalization of a theorem relating to a system of Euler--Poisson--Darboux equations
p. 1089-1090
О~семинаре по качественной теории дифференциальных уравнений в~Московском университете
p. 1091-1098

Sommaire du Fascicule no. 7

Self-similar heat structures with reduced half width
p. 1107-1114
A way of constructing methods for the numerical solution of differential equations
p. 1115-1122
Various modes of heat transfer in two-temperature gas dynamics
p. 1122-1131
An approach to the approximate solution of problems of stationary convection of a viscous incompressible fluid
p. 1131-1140
Convergence of difference schemes for elliptic equations with mixed derivatives and generalized solutions
p. 1140-1145
The accuracy of a method for the numerical solution of ordinary differential equations with variable coefficients
p. 1146-1154
Difference schemes for a one-dimensional diffusion equation in Cartesian and cylindrical coordinates in infinite intervals
p. 1154-1171
An equation of composite type connected with oscillations of a compressible stratified fluid
p. 1171-1180
Properties of normal stresses and displacements near a perturbed boundary of the contact zone
p. 1181-1186
Super-implicit difference schemes of gas dynamics
p. 1186-1197
Existence and uniqueness of the solution of a class of nonlinear parabolic problems
p. 1197-1207
Difference methods for solving some spectral problems
p. 1207-1215
Group properties of the heat equation with source in the two-dimensional and three-dimensional cases
p. 1215-1223
Mathematical analysis of a class of models of heterogeneous-catalytic reactions in nonideal adsorption systems
p. 1223-1230
A mathematical model of the kinetics of oxidation of carbon monoxide in a platinum catalyst
p. 1230-1235
Approximation of differential operators on nonorthogonal grids
p. 1235-1245
Consistent estimates for the rate of convergence of the method of nets for quasilinear equations of elliptic type with large Lipschitz constant
p. 1246-1250
Convergence of difference schemes for one-dimensional problems of gas dynamics taking into account heat conduction
p. 1251-1261
Nonuniqueness of a solution of the problem of flow around a cone at an angle of attack
p. 1262-1271
Investigation of the nonclassical drop problem
p. 1271-1276
Conservative difference schemes for Navier--Stokes equations in vortex-stream function-torque variables on irregular triangular grids
p. 1276-1284

Sommaire du Fascicule no. 8

Behavior at infinity of optimal trajectories of an object
p. 1291-1299
Investigation of the stability of solutions of certain nonlinear multidimensional differential systems
p. 1300-1310
Estimation of the growth of solutions of a piecewise constant system
p. 1310-1316
The spectrum and spectral singularities of differential operators with periodic complex-valued coefficients
p. 1316-1324
Problems of optimization with controls in the coefficients of a parabolic equation
p. 1324-1334
On the question of the construction of periodic solutions of nonautonomous differential equations
p. 1335-1343
Typical properties of conditional exponential stability.~I
p. 1344-1356
Invariant and stable families of sets with respect to differential inclusions
p. 1357-1366
The ``Cossack-robber'' differential game
p. 1366-1374
Stability under constantly acting perturbations
p. 1374-1378
Sharp estimates for eigenfunctions of an arbitrary nonselfadjoint Schr\"odinger operator
p. 1378-1385
Global phase portrait of a two-dimensional system of a special type
p. 1385-1389
Divergence of expansions in eigenfunctions
p. 1390-1400
An analogue of the Phragm\'en--Lindel\"of theorem
p. 1400-1406
On the Landau equation
p. 1406-1416
Addition theorems connected with toroidal, cylindrical and spherical harmonic functions
p. 1416-1427
Boundary value problems for operator-differential equations of mixed type
p. 1427-1436
On the problem of determining the right-hand side of a hyperbolic system
p. 1437-1445
Linear systems with a triangular reflecting function
p. 1446-1449
Stability of solutions of some classes of linear differential equations with oscillating coefficients
p. 1450-1452
Determination of the domain of exponential stability of systems of differential equations
p. 1452-1454
Refinement of bounds for highest exponents in the freezing method
p. 1454-1456
A counterexample in the theory of difference operators
p. 1457-1458
An approximate solution of the Stefan problem on an interval
p. 1458-1462
Conditions for the absence of circular motions in $n$-connected Froude pendulums of different masses
p. 1462-1466

Sommaire du Fascicule no. 9

Extension of the Sturm theorem to equations with retarded argument
p. 1475-1482
Stability of nonlinear systems. II.~Discussion of results and examples
p. 1482-1487
Necessary conditions for optimality with respect to the minimax of program control in the presence of constraints
p. 1487-1495
Stability in the large of a second-order system in a special case
p. 1495-1503
Typical properties of conditional exponential stability.~II
p. 1503-1510
On the investigation of equations with one degree of freedom, close to nonlinear integrable ones
p. 1511-1516
Application of certain results of branching theory in the solution of degenerate differential equations
p. 1516-1526
Degenerate systems and a degenerate parameter
p. 1527-1534
Sharp upper and lower bounds for characteristic indices of a two-dimensional system with bounded perturbations
p. 1534-1541
On the question of the sign of the Green function
p. 1542-1547
Spectral properties of operators generating equations of KdV type
p. 1548-1557
Global solution of a first-order partial differential equation.~I
p. 1558-1568
Existence and uniqueness of the solution of the Cauchy problem for a spatially nonhomogeneous coagulation equation
p. 1568-1579
A mixed problem of diffraction of a vertical dipole on a disk lying on the boundary between two media in the absence of axial symmetry
p. 1579-1585
Some properties of spectral expansions corresponding to an elliptic selfadjoint operator with discontinuous coefficients
p. 1585-1593
Some weighted anisotropic inequalities
p. 1593-1601
The mean-value theorem for an elliptic equation
p. 1601-1609
Polynomial approximation of solutions of a class of singular integro-differential equations
p. 1610-1613
Differential equations with an area first integral
p. 1613-1617
A remark on differential equations of neutral type
p. 1617-1619
Localization of spectral expansions connected with elliptic pseudodifferential operators
p. 1620-1623
Uniqueness of the solution of the modified Frankl' problem
p. 1624-1627
Controllability sets of control systems that are fibers of a foliation of codimension one
p. 1627-1630
A means of calculating a multiplicative integral by methods of the theory of surfaces
p. 1630-1632
An implicit function theorem and the solution of equations of neutral type
p. 1632-1636
Certain identities used in the solution of boundary value problems by the method of finite integral transformations
p. 1636-1638
Analytic equivalence of compressible diffeomorphisms in the neighborhood of an invariant torus
p. 1638-1640
The averaging principle for systems with ``fast'' and ``slow'' variables
p. 1640-1643
О~семинаре по качественной теории дифференциальных уравнений в~Московском университете
p. 1644-1650

Sommaire du Fascicule no. 10

Equations with fixed transcendental and essentially singular points
p. 1659-1667
A condition for solvability of quasilinear boundary value problems
p. 1667-1672
Necessary conditions for second-order optimality in problems of control with a vector performance index
p. 1672-1680
A method for obtaining multipoint conditions for optimality of singular controls in a problem of terminal control
p. 1681-1687
Integrability of invariant plane fields, separation and partial hyperbolicity
p. 1687-1693
Control under conditions of uncertainty of a system with a nonsmooth right-hand side
p. 1693-1699
A countertheorem of Giraud type for a second-order parabolic equation with nonnegative characteristic form
p. 1700-1713
The radiation principle for periodic problems
p. 1713-1723
The variational method of searching for generalized solutions of differential equations in function spaces with power weight
p. 1723-1740
Solutions of nonflat equations for the axisymmetric loading of circular flat membranes
p. 1741-1750
The Dirichlet problem for second-order degenerate equations with discontinuous coefficients
p. 1750-1759
Eigenvalues of boundary value problems for certain equations which change type
p. 1759-1764
Diffraction of a plane electromagnetic wave by a dielectric spheroid
p. 1765-1777
A nonselfadjoint irregular elliptic spectral partial differential boundary value problem
p. 1777-1785
Conservation laws in one-dimensional nonlinear hyperelasticity
p. 1786-1788
Localization of spectral decompositions for a pseudodifferential operator
p. 1788-1790
Parabolic systems of linear partial differential equations with multidimensional time
p. 1790-1793
Matrices of rational differential operators
p. 1793-1795
General calculus of pseudodifferential operators with symbols of power growth
p. 1796-1797
Determination of a general $G$-function of two variables, its special cases, and differential equations
p. 1797-1799
The evolution of the support of the solution of a boundary value problem of nonlinear heat conductivity in various regimes of localization
p. 1799-1802
A mean value formula for the regular solution of a hyperbolic equation
p. 1802-1803
The construction of a force function from a given family of trajectories
p. 1804-1807
Distribution of the eigenvalues of a Sturm--Liouville type problem with a spectral parameter in the boundary condition
p. 1807-1809
A modification of the approximation method
p. 1809-1813
Some special cases of the use of the method of false perturbations
p. 1813-1815
A study of the stabilizability and stability of self-tuning algorithms in systems with delay
p. 1815-1818
A solution by the finite difference method of a nonlinear regularized equation of shallow water
p. 1818-1820
The first boundary value problem in a half space for a degenerate parabolic equation
p. 1821-1823
Orthogonally similar systems of linear differential equations
p. 1823-1826
A generalized solution of a mixed problem for a first-order semilinear hyperbolic system
p. 1826-1828
Some multidimensional integral inequalities
p. 1828-1830
Информация о~работах по жестким системам дифференциальных уравнений
p. 1831-1832

Sommaire du Fascicule no. 11

Solvability of elementary two-point boundary value problems
p. 1843-1847
Typical properties of the behavior of trajectories on a multidimensional torus
p. 1847-1853
Periodic solutions of first-order differential equations
p. 1853-1859
Control of the rotational motion of a rigid body
p. 1860-1866
Typical properties of conditional exponential stability.~III
p. 1866-1870
Existence and properties of complete solutions of a class of differential equations
p. 1871-1879
Existence of a solution of a two-point boundary value problem for a system of first-order ordinary differential equations
p. 1880-1884
Reducibility of formal differential systems
p. 1884-1889
Universal optimal strategies in positional differential games
p. 1890-1896
Local attainability of nonlinear systems
p. 1897-1902
Investigation of convergence in a nonautonomous differential system by means of Lyapunov vector-functions
p. 1902-1907
Sufficient conditions for the existence of a solution to problems of determining the coefficients multiplying the highest derivatives of a parabolic equation
p. 1908-1915
Geometric aspects of the method of differential relations
p. 1915-1922
Asymptotic expansion of the solution of the neutron transport equation in the case of a small mean free path
p. 1922-1927
Determination of the constant coefficient of the heat equation
p. 1928-1937
Boundary value problems of the first kind for elliptic equations that degenerate on the entire boundary of the domain
p. 1937-1948
$G$-convergence and averaging of some higher-order nondivergence elliptic operators
p. 1949-1956
Triviality classes of solution of a system of partial differential equations in a half space
p. 1956-1965
The Tricomi problem in a domain bounded by arcs of characteristics and by half lines which are perpendicular to the line of degeneracy
p. 1965-1971
Noethericity of a class of linear operators in a Banach space
p. 1972-1977
Solution of a class of two-dimensional singular integral equations of the first kind
p. 1977-1984
A Darboux problem for the multidimensional wave equation
p. 1985-1988
A method for constructing a spline-solution for some classes of ordinary differential equations
p. 1988-1991
Construction of an asymptotic expansion of the solution of a hyperbolic equation with a weakly nonlinear perturbation
p. 1991-1992
Singularities of solutions of second-order systems in a real domain
p. 1993-1995
Eigenvalues of a periodic problem for partial differential equations with deviating arguments
p. 1995-1998
On the theory of controllability of systems with distributed parameters
p. 1998-2001
On the question of approximate determination of periodic solutions of differential equations
p. 2001-2004
Some global bifurcations
p. 2004-2006
Integral equations with singular curvilinear convolutions
p. 2007-2009
Asymptotic formulas for the spectrum of certain Sturm--Liouville boundary value problems
p. 2009-2011
On the question of the existence of upper and lower solutions of the Hammerstein integral inclusion
p. 2011-2013
Solvability in the large of the first boundary value problem for the generalized Boussinesq equation
p. 2014-2015
Reconstruction of fourth-order differential operators
p. 2016-2017

Sommaire du Fascicule no. 12

The structure of the Persidski{\v\i} spectrum of a second-order linear system
p. 2027-2031
Weak regularity and Green functions of linear extensions of dynamical systems
p. 2031-2039
Singular points of differential equations with nonoriented trajectories on a plane
p. 2039-2048
Equations of motion of mechanical systems
p. 2048-2056
Homeomorphism of dynamical systems in the neighborhood of a stable invariant manifold
p. 2056-2065
Exact lower and upper bounds of the highest and lowest characteristic exponents of a two-dimensional system with bounded perturbations
p. 2065-2071
Solvability of a boundary value problem for a second-order ordinary differential equation with a nonsummable singularity
p. 2071-2075
Periodic solutions of equations of parabolic type with small parameters
p. 2076-2081
Uniform estimates for solutions of hyperbolic equations with a small parameter multiplying the highest derivatives
p. 2082-2090
Differential properties of functions on the sphere
p. 2090-2101
Solution of a boundary value problem of the theory of scattering of waves by a finite system of cylindrical inclusions in a rectangular waveguide region
p. 2101-2114
The Cauchy problem with initial jump for singularly perturbed linear hyperbolic equations degenerating into a first-order equation
p. 2114-2122
A parabolic system of quasilinear equations.~I
p. 2123-2140
The Rothe-Galerkin method for a class of linear nonstationary systems
p. 2141-2148
Approximate solution of second-order functional-differential equations
p. 2148-2153
Estimates for the rate of convergence in semidiscretization of evolution equations
p. 2153-2159
Investigation of a class of nonlinear differential games
p. 2160-2163
A problem of vibration of a finite string
p. 2163-2166
An inverse problem for a quasilinear equation of parabolic type
p. 2166-2169
The measure of complexity of functional-differential equations
p. 2170-2172
Behavior of solutions of boundary value problems for the biharmonic equation in domains with corner points
p. 2172-2175
Periodic solutions of singularly perturbed systems of differential equations
p. 2176-2177
Condition for localization of the spectrum of a Sturm--Liouville boundary value problem on the positive half axis
p. 2177-2179
The method of integro-differential equations in a problem of synthesis of linear optimal systems with lag on an infinite time interval
p. 2179-2182
Criteria for the oscillatory behavior of solutions of equations of elliptic type
p. 2182-2186
Solvability of a singular integral equation with two shifts
p. 2187-2190