Correction

In my article (A. E. Martynyuk, DAN, vol. 117, no. 3, 1957) the following corrections should be made:

Page 374, line 7, and page 375, line 1 from the bottom: printed (H), should read (H_0).

Page 375, inequality (10): printed (|u|), should read (|u|_1).

Page 376, line 2: printed ((u, f)), should read ((A_1u, f)).

Page 376, formula (12) should be written in the form

[
(A_1u, f) = [u, u_0]_1,\qquad u \in H_1.
]

Page 376, line 4 from the bottom: printed

[
\frac{d^{k+1}}{dx^{k+1}},
]

should read

[
\frac{d^{k+1}u}{dx^{k+1}}.
]

A. E. Martynyuk