Ilmuradov D. D.
Ukr. Mat. Zh. - 1994. - 46, № 10. - pp. 1369–1374
N. N. Luzin's problem on the existence of a primitive function is considered. We present a more precise formulation of the solution of this problem obtained by Landis.
Ukr. Mat. Zh. - 1994. - 46, № 7. - pp. 842–848
We study the categorical analog of the Stepanov theorem and new criteria of asymptotic differentiability of real functions.