Journal of Classical Analysis · Volume 4, Issue 2 The order of magnitude for Hausdorff and Nörlund summability of an orthogonal series 04-12 Pages 181-188 DOI 10.7153/jca-04-12 Downloads Short PDF Full PDF PNG Authors K. Kalaivani G. P. Youvaraj Keywords Hausdorff summability Cesàro summability Hölder summability matrix Subject classes 40G05 40A05