In the paper [Y. Okuyama, On the absolute generalized Norlund summability of orthogonal series, Tamkang J. Math. Vol. 33, No. 2, (2002), 161-165] the author has found some sufficient conditions under which an orthogonal series is summable $|N,p,q|$ almost everywhere. These conditions are expressed in terms of coefficients of the series. It is the purpose of this paper to extend this result to double absolute summability $|N^{(2)},\mathfrak{p},\mathfrak{q}|_k$, $(1\leq k\leq 2)$.
Krasniqi, X. Z. (2011). On absolute generalized Norlund summability of double orthogonal series. International Journal of Nonlinear Analysis and Applications, 2(2), 62–74. https://doi.org/10.22075/ijnaa.2010.96
MLA
Krasniqi, X. Z. "On absolute generalized Norlund summability of double orthogonal series", International Journal of Nonlinear Analysis and Applications, 2, 2, 2011, 62–74. doi: 10.22075/ijnaa.2010.96
HARVARD
Krasniqi, X. Z. (2011). 'On absolute generalized Norlund summability of double orthogonal series', International Journal of Nonlinear Analysis and Applications, 2(2), pp. 62–74. doi: 10.22075/ijnaa.2010.96
CHICAGO
Krasniqi, X. Z., "On absolute generalized Norlund summability of double orthogonal series." International Journal of Nonlinear Analysis and Applications, 2 2 (2011): 62–74, doi: 10.22075/ijnaa.2010.96
VANCOUVER
Krasniqi X. Z. On absolute generalized Norlund summability of double orthogonal series. IJNAA. 2011;2(2):62–74. doi: 10.22075/ijnaa.2010.96
International Journal of Nonlinear Analysis and Applications