A converse product theorem in summability M. R. Parameswaran — 1980 Commentationes Mathematicae The article contains no abstract
A. Tauberian theorem for the product of the logarithmic and Cesàro methods of summability M. R. Parameswaran — 1976 Commentationes Mathematicae The article contains no abstract
The converse of a Tauberian theorem for Hausdorff methods B. Kuttner; M. R. Parameswaran — 1989 Commentationes Mathematicae The article contains no abstract