Spectral Characteristics and Stable Ranks for the Sarason Algebra H^infty+C

Raymond Mortini , Brett D. Wick

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classification 🧮 math.CV math.CA

keywords inftyalgebracharacteristicsdeterminerankssarasonspectralstable

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We prove a Corona type theorem with bounds for the Sarason algebra $H^\infty+C$ and determine its spectral characteristics. We also determine the Bass, the dense, and the topological stable ranks of $H^\infty+C$.

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Spectral Characteristics and Stable Ranks for the Sarason Algebra H^infty+C

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