pregledni rad (znanstveni)

On Birkhoff-James and Roberts orthogonality

Ljiljana Arambašić

Sažetak

In this paper we present some recent results on characterizations of the Birkhoff-James and the Roberts orthogonality in C*-algebras and Hilbert C*-modules.

Ključne riječi

normed linear spaceBirkhoff-James orthogonalityRoberts orthogonalityC*-algebranumerical rangeDavis-Wielandt shell