Correction

In the article by A. F. Andreeva, “Strengthening of the uniqueness theorem for an $O$-curve in $N_2$,” published in DAN, vol. 146, no. 1, 1962, the following corrections must be made.

On p. 9, line 8 from the bottom, where it says $r \in [0, r_0]$, it should read $(0, r_0]$.

On p. 10, line 16, the formula should read

\[ U(r, u_1(r)+v)-U(r,u_1(r))\leqslant \frac{\sigma}{k}\left(\frac{\Lambda(r)\omega(r)}{a(r)\omega'(r)}-1\right)v . \]