AA Ansari, VK Chaudhry - Ital. J. Pure Appl. Math, 2012 - ijpam.uniud.it
Let l∞, c and c0 be the linear spaces of bounded convergent and null sequences x=(xk) with
complex terms, respectively, normed by x∞= sup k| xk| where k∈ N={1, 2, 3,...}, the set of …