Decomposable and atomic projection maps

Simple item page
dc.creatorStormer, Erling
dc.date2009-04-01
dc.date.accessioned2026-07-07T12:59:01Z
dc.date.available2026-07-07T12:59:01Z
dc.descriptionIt is shown that a trace invariant projection map, i.e. a positive unital idempotent map, of a finite dimensional C*-algebra into itself is non-decomposable if and only if it is atomic, or equivalently not the sum of a 2-positive and a 2-copositive map. In particular projections onto spin factors of dimension greater than 6 are atomic.
dc.description7 pages
dc.identifierhttps://arxiv.org/abs/0904.0103
dc.identifierhttp://arxiv.org/abs/0904.0103
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/225442
dc.subjectOperator Algebras
dc.subject46L05
dc.titleDecomposable and atomic projection maps
dc.typetext

Files

Collections

arXiv