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Ordinary Differential Equations
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The support principle in optimal control problems
V. G. Boltyanskii
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1363–1370 |
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Affine invariants of a system with quadratic nonlinearities
È. F. Gasinskaya, K. S. Sibirskii
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1371–1382 |
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Certain questions of whether a linear optimal control problem with minimal pulse is well-posed. I. Dependence of the optimal control on the initial state and on the parameters
T. Gichev
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1383–1392 |
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Asymptotic solutions of second order linear homogeneous differential equations in a Banach space with a small parameter multiplying the highest derivative
L. A. Groza
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1393–1402 |
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Investigation of a discrete relay system by the method of point transformations of the switching domains. II
V. A. Gustomesov
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1403–1416 |
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Linear equations with integral separation that are everywhere dense in the set of all linear differential equations of order $n$
Kamal Ahmed Dib
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1417–1424 |
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Conditions for a priori boundedness of the solutions of boundary value problems for third order equations
Yu. A. Klokov, L. N. Pospelov
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1425–1431 |
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The cycles of the equation $y'=Q_2(x,y)/P_2(x,y)$
L. A. Cherkas
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1432–1437 |
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Partial Differential Equations
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Estimates of the fundamental potentials for parabolic equations of higher order. I
E. A. Baderko
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1438–1451 |
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The axially symmetric Dirichlet problem of the static theory of elasticity in displacements for a domain that is bounded by a cylindrical and a spherical surface
V. T. Erofeenko
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1452–1463 |
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The branching of the solutions of differential equations with a degeneracy
N. A. Sidorov
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1464–1481 |
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The approximation of the solutions of boundary value problems in unbounded domains
L. Shimon
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1482–1492 |
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Integral-Differential and Integral Equations
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On the approximate solution of singular integrodifferential equations. I. Linear equations
I. V. Boykov, I. I. Zhechev
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1493–1502 |
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Regularization of ill-posed convolution type equations by means of generalized summation of integrals
O. A. Liskovets
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1503–1510 |
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Set-valued mappings in the theory of integral equations with a discontinuous operator
L. N. Lyapin
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1511–1519 |
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Short Communications
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Bifurcations of the separatrices and limit cycles of a two-dimensional dynamical system under a rotation of the field
N. N. Butenina
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1520–1522 |
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Sufficient conditions for the oscillatoriness of the solutions of nonlinear finite difference equations
Ya. V. Bykov, L. V. Zhivoglyadova, E. I. Shevtsov
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1523–1524 |
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On the optimization of motions
V. I. Zubov
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1525–1526 |
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Sufficient conditions for stability and instability in the sense of V. I. Zubov of invariant manifolds of differential systems
I. G. Krosko
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1527–1529 |
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Partial stability in the first approximation
A. V. Lutsenko, L. V. Stadnikova
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1530–1533 |
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Meromorphic solutions of linear differential equations with meromorphic coefficients
V. D. Mokhon'ko
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1534–1536 |
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A fixed point method in certain boundary value problems for ordinary differential equations with discontinuous right hand side
R. K. Ragimkhanov
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1537–1539 |
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A proof of the presence of an infinite number of limit cycles for the equation $\ddot y+\mu\ sin$ $(\dot y+\theta )+y=0$
G. S. Rychkov
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1540–1542 |
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People of Soviet science
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Rafaèl' Aramovič Aleksandrjan (on the occasion of his fiftieth birthday)
S. N. Mergelyan, I. M. Gel'fand, O. A. Oleinik
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1543–1546 |
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