CORRECTIONS

In the article by L. G. Mikhailov, “Investigation of One Type of Two-Dimensional Integral Equations,” published in DAN, vol. 119, no. 1, 1958:

On p. 29, line 7, printed: “the condition is satisfied”; it should read: “the condition is met.”

On p. 29, line from the bottom, printed: “Theorem 6. If \(K(z)\) is continuous at the point \(z=0\),” it should read: “Theorem 6. If \(K(z)\) is bounded at the point \(z=0\).”

In my article published in DAN, vol. 120, no. 2, 1958 (A. D. Lyashko, “On the Convergence of Methods of Galerkin Type”), the equality \(\|\psi\|=1\) should be postulated, and the norm for the space \(Y\) should be introduced as follows: \(\|y\|=\|x\|\), \(y=Ax\), \(x\in X\).

A. D. Lyashko