%0 Journal Article %A Seyed Kamel Hosseini %A Jahangir Cheshmavar %A Héctor Camilo Chaparro %A Sanar Khalil Sarbaz %T Some results on linear operators: norm equivalence and closed range %J Filomat %D 2022 %P 2205 %V 36 %N 7 %U http://geodesic.mathdoc.fr/articles/10.2298/FIL2207205H/ %R 10.2298/FIL2207205H %G en %F 10_2298_FIL2207205H