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19992026
most citedHereditary subalgebras of operator algebras

46 citations · 341 across the 74 of their papers we have counts for

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6 papers · 1 filter

math.OA2025

Real decomposable maps on operator systems

David P. Blecher, Christiaan H. Pretorius

We initiate and study the theory of ``real decomposable maps" between real operator systems. Formally, this is new even in the complex case, which hitherto has restricted itself to…

math.OA2025

Commutativity of operator algebras

David P. Blecher

We call an operator algebra A {\em reversible} if A with reversed multiplication is also an abstract operator algebra (in the modern operator space sense). This class of operator a…

math.OA2025

Real Noncommutative Convexity II: Extremality and nc convex functions

David P. Blecher, Caleb Becker McClure

We continue the development of real noncommutative (nc) convexity, building on the recent and profound complex theory of Davidson and Kennedy. The present paper focuses on the theo…

math.OA2025

Real Non-Commutative Convexity I

David P. Blecher, Caleb McClure

We initiate the theory of real noncommutative (nc) convex sets, the real case of the recent and profound complex theory developed by Davidson and Kennedy. The present paper focuses…

math.RA2025

-ideals: from Banach spaces to rings

David P. Blecher, Amartya Goswami

We introduce and investigate a class of ring ideals, termed ring \emph{-ideals}, inspired by the Alfsen--Effros theory of -ideals in Banach spaces. We show…

math.OA2025

Real operator systems

David P. Blecher, Travis B. Russell

Operator systems are the unital self-adjoint subspaces of the bounded operators on a Hilbert space. Complex operator systems are an important category containing the C*-algebras an…