B–J Orthogonality of Operators
摘要
Without a shadow of doubt, Birkhoff–James (B–J) orthogonality is the principal tool used in this monograph in studying the geometry of operator spaces. Therefore, understanding B–J orthogonality of operators is of paramount importance to us. In this chapter, we gradually build the theory of characterizing B–J orthogonality of operators between Banach (Hilbert) spaces, up to its fullest generality.