Geodesic

Sommaire du Fascicule no. 1

A mixed problem for a hyperbolic equation degenerate on a part of the bounday of a region
p. 3-6
The Goursat and Darboux problems for a certain class of hyperbolic equations
p. 7-16
Certain estimates for equations of mixed type
p. 17-23
The generalized solvability of boundary value problems for systems of differential equations of mixed type
p. 24-29
The uniqueness of the solution of the contact inverse problem of potential theory
p. 30-40
A criterion for the continuity of the solution of the Goursat problem for a certain degenerate equation
p. 41-54
Equations of mixed type and degenerate hyperbolic equations in multidimensional domains
p. 55-67
Weak solutions of the Darboux problem
p. 68-75
The Cauchy problem for a second order quasilinear hyperbolic equation with initial data on the curve of parabolicity
p. 76-84
Asymptotic behavior of the solution of the Cauchy problem as $t\rightarrow \infty $ for a certain hyperbolic system that describes the motion of a rotating fluid
p. 85-96
The Darboux problem for a degenerate hyperbolic system
p. 97-106
On apriori estimates for the Tricomi and Darboux problems
p. 107-117
An interior inverse problem of the metaharmonic potential for a body that is close to the given one
p. 118-125
Boundary value problems for the system ${\rm rot}\ u+\lambda u=h$
p. 126-133
Certain boundary value problems for equations of mixed type with one and two curves of degeneracy
p. 134-142
The uniqueness of the solution of a certain problem of A. V. Bicadze
p. 143-146
A certain class of projection methods
p. 147-153
Interior inverse problems for the logarithmic potential
p. 154-163
A one-dimensional scattering theory. I
p. 164-178
Reduction of the problem of the oblique derivative to a Fredholm integro-differential equation
p. 179-189
Comment on conditions for the convergence of spectral expansions corresponding to self-adjoint extensions of elliptic operators

Sommaire du Fascicule no. 2

On the theory of necessary second order optimality conditions. I
p. 199-213
The differential equation that is connected with the problem of the conformal mapping of a circular pentagon with a slit
p. 214-222
The periodic oscillations with large amplitude of certain classes of nonlinear systems
p. 223-229
The structure of the solutions of a certain system of two differential equations. II
p. 230-242
On the game-theoretical problem of deflection
p. 243-248
Linear differential systems
p. 249-253
The complete controllability of a linear system with lag
p. 254-259
Linear differential pursuit games in the presence of lags
p. 260-267
On a conjecture of Smale
p. 268-282
The stability of dynamical systems on a given time interval
p. 283-289
The behavior of the solution of a boundary value problem for a system of ordinary differential equations with a small parameter multiplying the derivative
p. 290-299
Linear dynamical systems with control
p. 300-308
The index and the normal solvability of a general elliptic boundary value problem with a finite group of shifts on the boundary
p. 309-317
On the Gevrey theory for parabolic potentials. IV, V
p. 318-332
Some new relations between control systems and equations of mathematical physics. I
p. 333-348
The uniqueness of a solution of the Cauchy problem for second order equations
p. 349-361
Asymptotically bilateral methods of solution of partial differential equations
p. 362-371
The divergence on a set of positive measure of the Riesz means of kernels of fractional order
p. 372-373
The solutions of the equation $\Delta \Delta u=f$ in a piecewise smooth domain
p. 374-376
On the question of the stability in the large of a certain class of nonlinear control systems
p. 377-379
Discrete groups of problems
p. 380-382
A plane boundary value problem for determination of the initial stresses in a soil formation that is anisotropic with respect to water permeability
p. 383-386

Sommaire du Fascicule no. 3

On the topology of the family of integral curves of a homogeneous differential equation
p. 395-405
On the question of the homogeneity of minimal sets
p. 406-414
The almost periodic solutions of certain nonlinear systems of differential equations with deviating argument
p. 415-423
On the theory of differential $n$-person games
p. 424-434
Realization of a prescribed motion in the case of constantly acting perturbations by a sampled-data correction
p. 435-442
Conditions for negativity of the Green's function of a two-point boundary value problem with deviating argument
p. 443-452
The almost periodic solutions of homogeneous differential equations
p. 453-458
A generalization of the perturbation method for equations with lag, and application of it to the computation of transition processes in automatic control systems
p. 459-464
Asymptotic properties of the solutions of nonlinear differential equations with retarded argument
p. 465-472
A certain class of functional equations
p. 473-485
The third exterior boundary value problem for a second order elliptic equation. II
p. 486-493
Gevrey’s theory for parabolic potentials. V
p. 494-509
The integration of a system of linear partial differential equations with retarded argument
p. 510-522
On the theory of linear equations with functional argument
p. 523-528
The decomposition of G. Pólya and G. Mammana for a system of equations
p. 529-530
The stability in the large of a certain system of $n$ nonlinear differential equations
p. 531-533
Differential inequalities for linear differential equations with retarded argument
p. 534-538
The existence and uniqueness of solutions of nonlinear equations
p. 539-540
The determination of elements of motion
p. 541-542
A qualitative investigation of certain differential equations
p. 543-544
A certain method of solving an integral equation
p. 545-548
Multipoint boundary value problems for linear integro-differential equations in a class of smooth functions
p. 549-552
The behavior of the solutions of a periodic system of two differential equations that has an integral set of zero measure
p. 553-555
Nontopological mapping of the phase plane in the qualitative theory of first order differential equations
p. 556-558
Mazit Ifatovič Al'muhamedov
p. 559-560

Sommaire du Fascicule no. 4

A certain class of linear dynamical systems
p. 571-580
The influence of local perturbations on the solution of a boundary value problem
p. 581-589
A boundary value problem on the half-axis for an equation with a discontinuous right hand side
p. 590-597
The solution of a boundary value problem for a certain class of nonlinear ordinary differential equations by the method of successive approximations
p. 598-606
The degenerate periodic boundary value problem
p. 607-614
Asymptotic behavior of solutions of boundary value problems for systems of linear ordinary differential equations with a small parameter multiplying the derivative
p. 615-632
Certain questions of the instability of systems with aftereffect
p. 633-638
Asymptotically almost periodic solutions of certain nonstationary boundary value problems
p. 639-644
Certain properties of differential operators with variable coefficients that depend on the form of the domain
p. 645-651
The problem of quasi-inversion for the heat equation in a uniform metric
p. 652-658
Expansion in eigenfunctions of the operator of elasticity theory
p. 659-670
A certain problem for a degenerate nonlinear system of equations of elliptic type
p. 671-677
On the problem of analytic construction of regulators for equations of parabolic and hyperbolic type
p. 678-695
The solution of mixed boundary value problems in nonhomogeneous media for multiply connected domains of complex form by the lattice method
p. 696-705
The stability of the Dirichlet problem for elliptic equations of arbitrary order
p. 706-714
The existence of a Nash point in the problem of program control
p. 715-717
On the question of incidence of the representing point with the sliding surface in the method of modified differential descent
p. 718-720
Some topological properties of a certain integral operator
p. 721-724
Conditions for the existence of a solution of a certain multipoint boundary value problem for a system of differential equations
p. 725-726
Group properties of ordinary second order linear differential equations
p. 727-730
A certain method for the representation of the solutions of differential equations
p. 731-733
A certain application of Picard's theorem to higher order differential equations
p. 734-736
The convergence phenomenon of a certain nonlinear system
p. 737-739
Всесоюзная конференция по качественной теории дифференциальных уравнений в г. Рязани

Sommaire du Fascicule no. 5

On the theory of necessary second order optimality conditions. II
p. 751-761
On the theory of singularly perturbed problems with branch points for degenerate equations
p. 762-766
Theory of the controllability of linear discrete systems. I. The defining equation
p. 767-773
Conditions for the solvability of a certain boundary value problem for a system of differential equations
p. 774-777
An integral comparison theorem for certain systems of linear differential equations
p. 778-784
On the question of the asymptotic behavior of oscillatory solutions of a second order nonlinear differential equation
p. 785-789
Energy functions for certain dynamical systems
p. 790-794
The instability of the characteristic exponents of systems of linear differential equations with almost periodic coefficients
p. 795-800
On the Poincaré–Denjoy theory of multidimensional differential equations
p. 801-810
Asymptotic behavior of the eigenvalues and eigenfunctions of the Sturm–Liouville operator with a complex-valued polynomial potential. I
p. 811-816
A certain class of singular problems that can be solved by means of special integral transformations with respect to cylindrical functions
p. 817-822
The method of a small parameter for hyperbolic equations
p. 823-834
Exponential dichotomy for partial differential equations
p. 835-844
Problems of the stability of nonlinear Goursat–Darboux systems
p. 845-856
Certain new connections of control systems with equations of mathmatical physics. II
p. 857-870
The convergence of certain iteration processes to the solution of a boundary value problem
p. 871-880
The solution by difference methods of an ill-posed Cauchy problem for a second order abstract differential equation
p. 881-890
The method of lines for quasilinear elliptic equations
p. 891-901
The existence of a solution for a linear programming $n$-person differential game with quadratic cost functions
p. 902-905
The asymptotic stability of a certain system with lag
p. 906-908
Relations between the lengths of subcritical intervals of interpolation problems
p. 909-912
An investigation of the stability of the solutions in a certain nonlinear fourth order system
p. 913-916
The higher approximations in the averaging method
p. 917-920
Almost periodic solutions of equations of elliptic type
p. 921-924
The asymptotic behavior of the Jost function and of the eigenvalues of the Regge problem
p. 925-927
Solution of second order elliptic equations in weight spaces
p. 928-930
Рецензия на книгу Ю. А. Митропольского «Метод усреднения в нелинейной механике»
p. 931-933

Sommaire du Fascicule no. 6

Periodic oscillations with large amplitude. I
p. 943-952
The structure of the family of trajectories in the neighborhood of a singular point of a first order differential equation of second degree
p. 953-963
A direct method in linear differential games with general integral constraints
p. 964-971
Analysis of the necessity of the conditions of Smale and Robbin for structural stability for periodic systems of differential equations
p. 972-983
Spectral analysis and the scattering problem for the operator $-d^2/dx^2+A(x)$. I
p. 984-994
The unique solvability of two-point boundary value problems for ordinary differential equations
p. 995-1003
Solution of a boundary value problem of the theory of the diffraction of electromagnetic waves by a circular opening in a plane screen between two media
p. 1004-1014
On the Gevrey theory for parabolic potentials. VI
p. 1015-1025
An effective solution of the Cauchy problem for a system of equations of viscoplastic media
p. 1026-1035
A theorem of Gauss
p. 1036-1047
On the theory of the solutions of differential equations with Volterra operator
p. 1048-1057
A certain integral equation of the smooth transition type
p. 1058-1067
On the optimization of discrete systems
p. 1068-1080
Theory of the controllability of linear discrete systems. II. Ordinary systems
p. 1081-1091
The divergence in $L_p$ of the Riesz means of spectral expansions
p. 1092-1094
The limit cycles of the equation $\ddot x+f(x,\,\dot x)\dot x+g(x)=0$
p. 1095-1097
Impulse calculus for operators that act in a space of distributions
p. 1098-1100
Construction of controls according to measurements with lag
p. 1101-1102
Continuous dependence of the solution of a countable system of integro-differential equations on a parameter and the averaging method
p. 1103-1107
The nonoscillatoriness of the solutions of a second order linear differential equation
p. 1108-1110
The asymptotic behavior of oscillating solutions of the equation $\ddot x+f(t,\,x)g(\dot x)=0$
p. 1111-1115
Topological equivalence of certain differential systems
p. 1116-1119
Representation of the Green's function near the boundary and the solvability of generalized boundary value problems for second order elliptic equations
p. 1120-1123
A certain generalization of the Cauchy problem
p. 1124-1125
The existence and uniqueness of $O$-curves in normal domains
p. 1126-1129
On the question of the asymptotic behavior of the regular solutions of the first and second Painlevé equations
p. 1130-1132

Sommaire du Fascicule no. 7

Stability with respect to the first approximation in the case of $g$-perturbations
p. 1143-1152
The solutions of the Briot and Bouquet equation with a quasiholomorphic right hand side
p. 1153-1167
The stability of the solutions of differential-recurrence equations. I. Linear systems
p. 1168-1175
Certain properties of trajectories on a surface of genus two
p. 1176-1186
Spectral analysis and the scattering problem for the operator $-d^2/dx^2+A(x)$. II
p. 1187-1194
The asymptotic representation of the solutions of the equation $u^{''}=a(t)|u|^n\operatorname{sign}u$
p. 1195-1206
The limit cycles of certain differential equations
p. 1207-1213
The spectrum of nonselfadjoint ordinary differential operators of higher order
p. 1214-1224
The solution by the method of parabolic potentials of a certain heat conduction problem with concentrated thermal capacities
p. 1225-1234
Estimation and stability of the solution of a parabolic equation with retarded argument
p. 1235-1241
Estimation in the $L_2$ metric of the derivatives of the solutions of linear nonhomogeneous equations of elliptic type and arbitrary order near the boundary of the domain
p. 1242-1255
The Cauchy problem for abstract Love equations
p. 1256-1266
Dirichlet series that are composed of the eigenvalues of boundary value problems for an arbitrary second order elliptic differential operator
p. 1267-1282
Theory of the controllability of linear discrete systems. III. Systems with aftereffect
p. 1283-1291
Realization of a given motion under arbitrary perturbation by an impulse correction (difference schemes)
p. 1292-1301
A remark on a certain theorem of Wong
p. 1302-1304
Solution of an infinite system of second order ordinary differential equations of a special form
p. 1305-1306
On the solution of the problem of the diffraction of a dipole field by a circular aperture in a plane screen in the presence of a coaxial circular disc
p. 1307-1308
The limit cycles of the Rayleigh equation
p. 1309-1311
Stabilization of the motion of certain nonlinear systems with respect to linear approximation
p. 1312-1315
Improvement of the conditions for the stability of difference schemes of increased accuracy for the heat equation by the “vanishing viscosity” method
p. 1316-1319
A linearized method of determining the general solution of a finite equation
p. 1320-1322
Certain sufficient criteria for the reducibility of second order linear systems
p. 1323-1325
On the construction of a multiperiodic solution of a certain system of partial differential equations with a common principal part
p. 1326-1329
Рецензия на книгу В. М. Волосова, Б. И. Моргунова «Метод осреднения в теории нелинейных
p. 1330-1331
Поправки к статье: “Об устойчивости в целом одной системы $n$ нелинейных дифференциальных
Letter to the editors

Sommaire du Fascicule no. 8

A generalized Bohr–Neugebauer theorem
p. 1343-1348
The construction of a set of systems of differential equations that have prescribed curves as their limit cycles
p. 1349-1356
Inverse problems of the dynamics of a heavy solid body with one fixed point
p. 1357-1362
A certain formulation of linear pursuit problems
p. 1363-1371
The stability of the solutions of differential-recurrence equations. II. Stability under linear approximation
p. 1372-1376
Uniqueness of the solution of boundary value problems for systems of two first order differential equations
p. 1377-1385
Certain problems of the optimal control of the intensity of random perturbations
p. 1386-1395
The solutions of differential equations with singular initial conditions
p. 1396-1403
On the theory of Painlevé's sixth equation
p. 1404-1408
On the question of algebraic movable singularities
p. 1409-1415
Simultaneous accessibility of the central exponents of two-dimensional linear systems
p. 1416-1422
A model example of the pursuit game problem with incomplete information. II
p. 1423-1434
Conditions for the center for certain equations of the form $yy'=P(x)+Q(x)y+R(x)y^2$
p. 1435-1439
The behavior of the solutions of a quasi-linear parabolic equation in divergence form as $t\rightarrow \infty $
p. 1440-1446
Existence and uniqueness of the generalized solution of a certain nonlinear problem in an infinite domain
p. 1447-1451
Weighted spaces. The imbedding theorem
p. 1452-1462
Exponential decrease at infinity of certain solutions of elliptic equations
p. 1463-1472
Conditions for the complete continuity of integral operators with fixed singularities in the space of continuous functions
p. 1473-1485
The construction of $s$-adjoints to integro-differential operators
p. 1486-1493
The source function of the Laplace operator for a domain that is bounded by a hyperboloid of rotation
p. 1494-1497
Necessary optimality conditions for systems that are not solved with respect to the derivative
p. 1498-1500
The connection between the Bellman function and matrix impulses
p. 1501-1504
Existence and uniqueness of the periodic solution of a relay system with hysteresis
p. 1505-1506
The identifiability of linear nonstationary systems
p. 1507-1510
Certain special transformations of matrix differential equations of Riccati type
p. 1511-1514
Systems of differential equations with selective switching
p. 1515-1516
A remark on the theory of integral equations
p. 1517-1520
The Cauchy problem for a certain class of differential equations
p. 1521-1524

Sommaire du Fascicule no. 9

Inverse problems of dynamics and problems of control of the motions of material systems
p. 1535-1541
The Cauchy problem for differential equations with retarded argument
p. 1542-1552
Necessary conditions for the extremum of a function
p. 1553-1559
On the question of solutions that are close to continuous ones in a system of conditionally stable type with a small parameter multiplying the derivatives
p. 1560-1568
Positive cycles in a system with a limiting factor
p. 1569-1576
Nonstability of the exponent of exponential separatedness of the solutions of a system of differential equations and nonsymmetry of the relation of almost reducibility of systems of differential equations with integral separatedness of the solutions
p. 1577-1586
Dynamical systems with aftereffect
p. 1587-1597
A certain method of solving linear differential equations of order $n\leq +\infty $
p. 1598-1608
Fractional powers of elliptic operators and isomorphism of classes of differentiable functions
p. 1609-1626
The branchings of the solutions of a certain class of nonlinear partial differential equations
p. 1627-1638
Well-posed formulation of a mixed problem for the nonstationary transport equation
p. 1639-1648
The fundamental solutions of a certain class of elliptic-parabolic second order equations
p. 1649-1660
Difference methods of solving ill-posed Cauchy problems for evolution equations in a complex $B$-space
p. 1661-1668
The method of successive approximations in connection with second order differential equations
p. 1669-1673
Factorized Rothe schemes for quasilinear parabolic equations
p. 1674-1681
Investigation of the qualitative behavior of the trajectories of a certain system of differential equations
p. 1682-1683
The stability of relay systems
p. 1684-1686
On the theory of optimal processes in linear systems
p. 1687-1690
Limit cycles in the case of the center
p. 1691-1692
The stability of multicomponent periodic motions
p. 1693-1694
The Čaplygin problem for a certain first order differential equation
p. 1695-1697
Regularization of equations with a closed operator
p. 1698-1700
The boundedness and unboundedness of the solutions of a second order ordinary differential equation
p. 1701-1704
The stability of certain systems with transformed argument
p. 1705-1708
Investigation of the trajectories of a certain dynamical system
p. 1709-1712

Sommaire du Fascicule no. 10

Representations of the $TO$-solutions of the equation $X(x,y)dy=Y(x,y)dx$
p. 1723-1737
A condition for the completeness of the system of root subspaces of a Sturm–Liouville type operator in Hilbert space
p. 1738-1744
Criteria for the optimality of discrete processes
p. 1745-1752
Sufficient conditions for the existence of solutions with stationary critical singular points for first order equations
p. 1753-1760
The construction of the equations of a programmed motion having extremal properties
p. 1761-1766
A certain differential game
p. 1767-1771
The existence of a locally invariant surface for certain strongly nonlinear systems of differential equations
p. 1772-1778
On the analytic theory of the equation $z^2u^{''}-f(z)u=0$. I, II
p. 1779-1790
Coefficient criteria for the existence of separatrix cycles for a certain quadratic equation
p. 1791-1796
A certain differential pursuit game with information lag in the presence of integral constraints
p. 1797-1804
Diffraction of the radiation field of a horizontal dipole by a circular opening in a plane screen in the presence of a circular disc that is coaxial to it
p. 1805-1815
Branching of the solutions of the equation $\Delta u+\lambda u=f(u)$ on the sphere
p. 1816-1824
Expansion of functions belonging to $L_p$ in the eigenfunctions of certain elliptic operators
p. 1825-1834
Weight spaces. Boundary conditions
p. 1835-1847
A representation of the analytic solutions of certain matrix-valued partial differential equations
p. 1848-1856
On necessary conditions for high order optimality for singular controls of discrete systems
p. 1857-1867
The space-time version of the method of straight lines, and its realization
p. 1868-1875
On the existence of periodic solutions to nonlinear systems
p. 1876-1877
On the question of the estimation of domains of attraction
p. 1878-1879
The singular points of the Darboux differential equation
p. 1880-1881
The almost differentiability with respect to parameters of the solutions of a system of first order ordinary differential equations
p. 1882-1885
The solutions of a certain differential system in a complex domain
p. 1886-1888
On the question of the stability of the solutions of linear systems of differential equations with lag
p. 1889-1891
An estimate of the sector of absolute stability of a certain third order nonlinear equation
p. 1892-1893
The boundedness and unboundedness of the solutions of certain systems of second order equations
p. 1894-1897
A certain class of integrable equations with limit cycles
p. 1898-1900
Global topological equivalence of nonlinear flows
p. 1901-1903
Solvability in the large of the first boundary value problem for a certain class of quasilinear one-dimensional parabolic equations
p. 1904-1905
A certain oblique derivative problem for harmonic functions of three independent variables
p. 1906-1908

Sommaire du Fascicule no. 11

The nonstationary singularities of a certain class of nonlinear equations
p. 1919-1926
Discrete maximum principle (method of local sections)
p. 1927-1935
On the question of the existence of solutions of differential equations with deviating argument of neutral type
p. 1936-1942
Topological equivalence of linear systems of Pfaffian equations in neighborhoods of their one-dimensional closed characteristics
p. 1943-1949
On the theory of invariance of dynamical systems
p. 1950-1956
On the question of the existence of solutions of differential equations with deviating argument
p. 1957-1962
The instability of the solutions of linear systems of differential equations with lag
p. 1963-1968
The boundedness of infinitely continuable solutions of a system of two equations with quadratic right hand sides, and the set of characteristic Ljapunov exponents of the solutions of this system
p. 1969-1976
Convergence of the small parameter method in the construction of periodic solutions of ordinary differential equations of neutral type with small lag
p. 1977-1987
Über die Approximation der Lösungen von linearen Gleichungen im Banachraum
p. 1988-1993
Existence of optimal controls in a problem with a free right-hand end point
p. 1994-1998
On the analytic theory of the equation $z^2u^{''}-f(z)u=0$. I, II
p. 1999-2011
A certain class of almost periodic motions in systems with pulses
p. 2012-2022
The direct and inverse boundary value problems for the heat equation
p. 2023-2028
A certain system of quasilinear parabolic equations with splitting principal parts
p. 2029-2037
Semigroups of the classes $A^{n,\alpha}$ and the abstract Cauchy problem
p. 2038-2047
Non-regular differential operators. Elliptic equations
p. 2048-2061
Poisson stable solutions of linear systems of difference equations
p. 2062-2072
Linear differential equations that are invariant with respect to a finite group of linear-fractional substitutions
p. 2073-2075
Some remarks on differential equations of the form $y^{''}+a_0(x)y=\varphi(x)y^\alpha$
p. 2076-2079
On the question of the integration in $K'$ of differential equations with a generalized Čebyšev operator
p. 2080-2081
A certain class of third order differential equations with stationary critical singular points
p. 2082-2086
Selfoscillations in a generator with distributed parameters
p. 2087-2089
Perturbations that preserve the property of stability
p. 2090-2092
The stability in the large of nonlinear control systems in critical cases
p. 2093-2095
An analogue of Perron's theorem for strongly nonlinear systems of differential equations
p. 2096-2097
The stabilization of the solutions of second order parabolic equations with rapidly increasing coefficients
p. 2098-2101
A certain class of solutions of quasilinear systems of equations
p. 2102-2105
Рецензия на книгу Е. А. Гребеникова и Ю. А. Рябова «Новые качественные методы в небесной механике»
p. 2106-2107
Рецензия на книгу И. 3. Штокало «Операционное исчисление (обобщения и приложения)»

Sommaire du Fascicule no. 12

The development of national mathematics (on the fiftieth anniversary of Soviet education)
p. 2119-2129
The inverse problem of spectral analysis for a certain class of problems with a parameter in the boundary conditions
p. 2130-2139
The differentiability of the cost of a differential approach game
p. 2140-2148
The convexity of spheres of attainability
p. 2149-2155
A certain theorem of Erugin
p. 2156-2162
Continuability of the solutions of functional equations with heredity
p. 2163-2166
The stability and instability of Levinson's center
p. 2167-2170
Boundary value problems for a nonlinear differential equation with deviating argument of neutral type
p. 2171-2179
A certain boundary value problem on a semi-infinite interval
p. 2180-2186
A metric problem for Frommer's first discrimination problem
p. 2187-2196
Linear dependence of functions along the solutions of systems of differential equations, and systems with algebraic trajectories
p. 2197-2204
A criterion for the uniqueness of the trajectory that enters a stationary point in a prescribed direction
p. 2205-2210
The problem of an algebraic integral in the case of the center
p. 2211-2214
The modulus of the Fourier exponents of almost periodic solutions
p. 2215-2219
The continuation of generalized solutions of systems of differential equations from a convex domain
p. 2220-2224
Solution of one-dimensional linear mixed problems for a system with coefficients constant in time
p. 2225-2234
A certain problem of optimal control of nonstationary transport processes
p. 2235-2243
On transversality conditions in the problem of optimization with singular control
p. 2244-2247
Application of generalized Ljapunov functions to the study of limit cycles on the plane
p. 2248-2250
The local solvability of a boundary value problem for ordinary differential equations
A class of third order differential equations with stationary critical singular points
p. 2252-2254
A reduction principle for certain strongly nonlinear systems of differential equations
p. 2255-2256
The limit cycles of the equation $u(x+1)du=(-x+ax^2+bxu+cu+du^2)dx$
p. 2257-2259
A quasilinearization method for ordinary differential equations with deviating argument
p. 2260-2263
Control of the rotational motion of a solid body
p. 2264-2266
An effective solution of a certain two-dimensional integral equation with a homogeneous kernel, and its applications
p. 2267-2270
The absence of limit cycles of a certain differential equation
p. 2271-2273
On the theory of the first approximation of discrete nonautonomous stabilization systems
p. 2274-2276
A remark on the boundedness of the solutions of the differential equation $A_0(t)x^{''}+A_1(t)x'+A_2(t)f(x)=p(t)$
p. 2277-2280
Vladimir Ivanovič Krylov (on his seventieth birthday)
p. 2281-2286