A+ CATEGORY SCIENTIFIC UNIT

Accretive approximation in C*-algebras

Volume 117 / 1996

Reiner Berntzen Studia Mathematica 117 (1996), 115-121 DOI: 10.4064/sm-117-2-115-121

Abstract

The problem of approximation by accretive elements in a unital C*-algebra suggested by P. R. Halmos is substantially solved. The key idea is the observation that accretive approximation can be regarded as a combination of positive and self-adjoint approximation. The approximation results are proved both in the C*-norm and in another, topologically equivalent norm.

Authors

  • Reiner Berntzen

Search for IMPAN publications

Query phrase too short. Type at least 4 characters.

Rewrite code from the image

Reload image

Reload image