5 votes

P-adic C* algebras

Me, Alcides Buss, and Devarshi Mukherjee proposed an answer to this question in this paper. $\textbf{The idea:}$ Note that via GNS, we can view a complex/real $C^*$-algebra essentially as a closed $*$-...
Luiz Felipe Garcia's user avatar
4 votes

Quantum braid group

The following answer comprises a collection of remarks. (1) What, typically, allows a quantum version of a classical group is not relations between elements of the group $G$ (but see (2)), but rather ...
JP McCarthy's user avatar
3 votes

Minimal norm problem whose unknown is an operator

Let me try to explain the series of comments by David Gao and transform it into a complete answer. It is worth keeping in mind the types of objects here: The elements $x, y$ are considered to be ...
Willie Wong's user avatar
  • 37.4k
2 votes

A subfactor of finite index

Yes. This is a special case of the results in Section 2 of Frank and Kirchberg's article "On conditional expectations of finite index" [arXiv:math/9804074].
Dave Penneys's user avatar
  • 5,335
1 vote

Order bounded version of monotone complete $C^*$-algebras

Let $\tilde{A}$ denote the (unique up to isomorphism) unitization of a non-unital $C^*$-algebra $A$. Proposition 2.1.11 in Saitô and Wright's monograph states the following: Let $A$ be a $C^*$-...
Alec Gow's user avatar

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