Some results on linear operators: norm equivalence and closed range


Seyed Kamel Hosseini, Jahangir Cheshmavar, Héctor Camilo Chaparro, Sanar Khalil Sarbaz




In this paper we develop some properties about bounded linear operators. We investigate relationships between bounded below and norm equivalent operators. Finally, we study conditions under which those operators become Fredholmn, Weyl and Browder type operators, respectively.