An introductory course in summability theoryAasma, Ants; Dutta, Hemen; Natarajan, Pinnangudi N.2017 Matrix transforms of λ-boundedness domains of the Zweier methodAasma, Ants; Dutta, HemenTWMS Journal of applied and engineering mathematics2020 / p. 28-37 https://jaem.isikun.edu.tr/web/images/articles/vol.10-Special_Issue/04.pdf https://jaem.isikun.edu.tr/web/index.php/archive/107-vol10-special-issue/582-matrix-transforms-of-boundedness-domains-of-the-zweier-method Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS Summability methods and applications. TWMS Journal of applied and engineering mathematics2020 http://jaem.isikun.edu.tr/web/index.php/archive/592-jaem-vol-10-special-issue