Izvorni znanstveni članak

Approximate isometries in Hilbert C*-modules

Alireza Kamel Mirmostafaee ; Department of Pure Mathematics, Ferdowsi University of Mashhad, Mashhad, Iran

Sažetak

We use the fixed point alternative theorem to prove that, under suitable conditions, every A-valued approximate isometry on a Hilbert C*-module over the C*-algebra A can be approximated by a unique A-valued isometry.

Ključne riječi

isometric theory of Banach spaces; Hilbert C*-module; Hyers-Ulam stability; fixed point alternative

Hrčak ID:

37443

URI

https://hrcak.srce.hr/37443

Datum izdavanja:

3.6.2009.

Posjeta: 1.442 *