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# Questions

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### Did Gelfand’s theory of commutative Banach algebras influence algebraic geometers?

apr 4 10 at 8:21 KConrad 17.2k364119

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### Does equality of the operator norm and the cb norm for every bimodule map over a C*-subalgebra imply that the subalgebra is matricially norming?

mar 27 11 at 14:22 MathOverflow 123

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### What is the “Krein-Milman theorem for cones”?

may 9 10 at 6:55 Jonas Meyer 4,85912131

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### What is the origin of this positive matrix characterization of bounded analytic functions on the unit disk?

mar 8 10 at 0:00 Jonas Meyer 4,85912131

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