I. S. Iokhvidov. On signatures of Toeplitz forms — 1258
Ludmila Keldysh. Topological imbeddings and pseudoisotopy — 1262
V. P. Kompaniets, A. V. Chernavskii. Equivalence of two classes of sphere mappings — 1266
M. G. Krein, Sh. N. Saakian. Some new relationships in the theory of the resolvents of Hermite operators — 1269
V. G. Kukharev. The critical determinant of the region \(|x|^p + |y|^p \leqslant 1\) — 1273
K. A. Rodosskii. Discrete periodic processes — 1276
P. M. Tamrazov. Some problems of conformal mapping which generate quadratic differentials with five distinct poles — 1279
Iu. N. Khaimulin. Certain properties of \(\{k; n\}_q\)-arcs in Galois planes — 1281
V. I. Shevchenko. Hilbert’s problem for a holomorphic vector — 1285

CYBERNETICS AND THE REGULATION THEORY

I. I. Piatetskii-Shapiro, V. A. Volkonskii, L. V. Levina, A. Pomanskii. An iteration method of solving integer programming problems — 1289
E. V. Fudim. Pneumatic computation technique of a discontinuous action — 1293

FLUID MECHANICS

N. I. Buleev, V. S. Petrishchev. A numerical method of solving hydrodynamics equations in the case of a two-dimensional flow — 1296

MATHEMATICAL PHYSICS

V. B. Gostev, A. R. Frenkin. One-nucleon states in a model with a fixed source — 1300

PHYSICS

T. M. Zimkina, V. A. Fomichev. Absorption spectrum of sulphur hexafluoride in the region of ultra-soft X-ray emission — 1304
A. P. Komar, V. P. Denisov, L. A. Kulchitskii. Investigation of the photosplitting of \(O^{16}\) nucleus — 1307
O. B. Firsov. Glancing angle reflection of fast ions by a dense medium — 1311
I. G. Fikhtengolz. Gravitation equations and coordinate conditions in conformal space — 1314

TECHNICAL PHYSICS

A. R. Kutsar, E. G. Poniatovskii. Compressibility of chromium and its \(P\)—\(T\)-diagram — 1318

CRYSTALLOGRAPHY

V. I. Burdina. The main computation formulae of the crystal structure analysis as expressed through the parameters of the symmetry groups — 1320
A. Iu. Malevskii. On isomorphic thallium presence in galenite — 1324

CORRECTIONS

In my note (V. M. Millionshchikov, “Recurrent and almost periodic limiting trajectories of nonautonomous systems of differential equations”), published in Doklady Akademii Nauk, vol. 161, no. 1, 1965, Definition 3 on p. 44 should read as follows:

A solution \(x(t)\) \((t \geq t_0)\) will be called completely stable in the sense of Lyapunov if for every neighborhood of zero \(U \subset L\) and every \(T\) there exist a neighborhood of zero \(V \subset L\) and a number \(\bar t\) such that, if \(x(t') - x(t'') \in V\) and \(t' \geq \bar t\), \(t'' \geq \bar t\), then \(x(t' + t) - x(t'' + t) \in U\) for all \(t \geq T\).

In my note (V. M. Millionshchikov, “Asymptotics of solutions of linear systems with small perturbations”), published in Doklady Akademii Nauk, vol. 162, no. 2, 1965:

1) on p. 266, line 10 from the bottom, where \(C_1\) is printed, read \(C_1 = \operatorname{const}\cdot v_1(t)\);

2) on p. 267, line 11 from the bottom, where
\[ \int^\infty \tau^{m-1} g(\tau)\,d\tau, \]
is printed, read
\[ \int^\infty \tau^{m-1} g(\tau)\,d\tau < \infty. \]

V. M. Millionshchikov

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