Operators and Matrices · Volume 15, Issue 2 Properties of J-self-adjoint operators 15-42 Pages 627-644 DOI 10.7153/oam-2021-15-42 Downloads Short PDF Full PDF PNG Authors Sungeun Jung Keywords J-self-adjoint operator polar decomposition Aluthge transform skew-complex symmetric complex symmetric property (β) decomposable Subject classes 47A11 47A10 47B49 47B32