TL;DR
This paper provides a concise proof of the Choi-Effros theorem, which characterizes the structure of ranges of completely positive projections in operator algebras.
Contribution
It offers a simplified proof of a well-known theorem, enhancing understanding of the structure of completely positive projections.
Findings
Short proof of the Choi-Effros theorem
Clarifies the structure of ranges of completely positive projections
Simplifies previous proofs
Abstract
A short proof is given for the well-known Choi-Effros theorem on the structure of ranges of completely positive projections.
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Taxonomy
TopicsAdvanced Operator Algebra Research · Advanced Banach Space Theory · Advanced Topics in Algebra