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1950, Volume 26(68), Number 2  


On differential-geometrical objects of class $v$ in $X_1$
Yu. E. Penzov
161
Uniqueness of convex surfaces of revolution
A. D. Aleksandrov, A. V. Pogorelov
183
On curves with curvature of bounded variation on a convex surface
V. A. Zalgaller
205
An estimate for the number of singular points of a dynamical system defined on a manifold
L. È. Èl'sgol'ts
215
The definition of a boundary by means of continuous mappings
A. D. Myshkis
225
On the equivalence of certain methods of definition of a boundary
A. D. Myshkis
228
On a nonlinear boundary problem of the theory of analytic functions
A. I. Guseinov
237
Isometric operators with equal deficiency indices, quasi-unitary operators
M. S. Livshits
247
On central trajectories and a problem of Birkhoff
A. G. Maier
265
Description of a class of normed rings of functions
G. E. Shilov
291
Groups with a basis of partition. IV
P. Kontorowitch
311
Математический сборник (новая серия) - 1947–1963
 
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