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1973, Volume 9, Number 10  

Ordinary Differential Equations
On the proof of the maximum principle for objects with continuous time
V. G. Boltyanskii 		1747–1753
Optimal control of a process of trajectory measurements under random perturbations
V. B. Kolmanovskii 		1754–1764
Conditions for the existence of solutions with singular initial conditions of a nonlinear system of two differential equations
S. G. Kondratenya, A. I. Yablonskii 		1765–1773
Generalized Ljapunov functions, and the theory of exceptional directions
Yu. V. Malyshev 		1774–1779
Differential equations with fixed critical singular points
I. P. Martynov 		1780–1791
Contact avoidance problem in differential games with nonlinear controls
E. F. Mishchenko, N. Satimov 		1792–1797
On the problem of the construction of equations of programmed motions
I. A. Mukhametzyanov 		1798–1809
Certain properties of the $O$-curves of first order equations with factored right-hand side
V. V. Nikonenko 		1810–1816
On the problem of the center for systems with discontinuous right-hand sides
I. I. Pleshkan, K. S. Sibirskii 		1817–1825
The almost recurrent and recurrent motions of discontinuous dynamical systems
V. F. Rozhko 		1826–1830

Partial Differential Equations
The question whether nonlinear mixed problems for almost linear hyperbolic systems in the plane are well posed
V. N. Gol'dberg 		1831–1844
Continuous branches of the eigenfunctions of quasilinear elliptic problems
V. S. Klimov 		1845–1850
Method of $\varepsilon $-quasisolutions for equations of the first kind
O. A. Liskovets 		1851–1861
The construction of order-optimal approximate solutions of linear conditionally well-posed problems
V. N. Strakhov 		1862–1874
Diffraction of a plane sonic wave in an angular domain whose boundaries are absolutely rigid and slippery and coated thin elastic plates
A. A. Tuzhilin 		1875–1888
Smoothness of generalized solutions near the vertex of a polyhedral angle
A. F. Filippov 		1889–1903

Finite difference equations
Existence of invariant tori for systems of difference equations
A. M. Samoilenko, D. I. Martynyuk, N. A. Perestyuk 		1904–1910

Short Communications
Comparison functions for the solutions of a certain first order nonlinear differential equation
G. S. Krechetov 		1911–1914
A plane mixed heat conduction problem for a wedge
L. Ya. Tikhonenko 		1915–1918
On a certain theorem of N. E. Žukovskiǐ
A. Ya. Khokhryakov 		1919–1921
 
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