Operators and Matrices · Volume 15, Issue 3 Interplay of Simple and Selfadjoint-ideal semigroups in B(H) 15-56 Pages 815-851 DOI 10.7153/oam-2021-15-56 Downloads Short PDF Full PDF PNG Authors Sasmita Patnaik Gary Weiss Keywords semigroups selfadjoint semigroups selfadjoint-ideal semigroups simple semigroups singly generated semigroups Subject classes 47B15 20M12 47D03 20M14 47L20