Oniani, Giorgi; Tulone, Francesco On the possible values of upper and lower derivatives with respect to differentiation bases of product structure. (English) Zbl 1401.28005 Bull. Georgian Natl. Acad. Sci. (N.S.) 12, No. 1, 12-15 (2018). MSC: 28A15 26B05 PDFBibTeX XMLCite \textit{G. Oniani} and \textit{F. Tulone}, Bull. Georgian Natl. Acad. Sci. (N.S.) 12, No. 1, 12--15 (2018; Zbl 1401.28005) Full Text: Link
Oniani, Giorgi Divergence of Fourier series with respect to systems of products of bases. (English) Zbl 1281.42029 Bull. Georgian Natl. Acad. Sci. (N.S.) 6, No. 3, 5-9 (2012). MSC: 42C10 42B08 42B05 PDFBibTeX XMLCite \textit{G. Oniani}, Bull. Georgian Natl. Acad. Sci. (N.S.) 6, No. 3, 5--9 (2012; Zbl 1281.42029) Full Text: Link
Oniani, Giorgi On the regular convergence by rectangles of multiple Fourier-Haar series. (English) Zbl 1281.42028 Bull. Georgian Natl. Acad. Sci. (N.S.) 6, No. 2, 31-33 (2012). MSC: 42C10 PDFBibTeX XMLCite \textit{G. Oniani}, Bull. Georgian Natl. Acad. Sci. (N.S.) 6, No. 2, 31--33 (2012; Zbl 1281.42028) Full Text: Link