OKELO, Benard; ONGATI, Omolo; KARIEKO, Obogi Robert. PROJECTIVE NORMS AND CONVERGENCE OF NORM-ATTAINABLE OPERATORS. Journal of Global Research in Mathematical Archives(JGRMA), [S. l.], v. 2, n. 5, p. 10–17, 2015. Disponível em: https://jgrma.com/index.php/jgrma/article/view/175. Acesso em: 29 apr. 2025.