Operators and Matrices · Volume 2, Issue 4 A new characterization of the closure of the (U+K)-orbit of certain essentially normal operators 02-28 Pages 455-463 DOI 10.7153/oam-02-28 Downloads Short PDF Full PDF PNG Authors Fahui Zhai Junjie Zhao Keywords (U+K)-orbit of operator essentially normal operator spectral picture injective unilateral weighted operator Subject classes 47B37 47B20