Mean oscillations and the convergence of Poisson integrals
We establish conditions for mean oscillations of a periodic summable function under which the summability of its Fourier series (conjugate series) by the Abel-Poisson method at a given point implies the convergence of Steklov means (the existence of the conjugate function) at the indicated point. Similar results are also obtained for the Poisson integral in ℝ+n+1.
English version (Springer): Ukrainian Mathematical Journal 49 (1997), no. 2, pp 227-246.
Citation Example: Kolyada V. I. Mean oscillations and the convergence of Poisson integrals // Ukr. Mat. Zh. - 1997. - 49, № 2. - pp. 206–222.