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arXiv · 1508.06488

The von Neumann inequality for 3x3 matrices

Greg Knese
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Abstract

Recent work of Kosi\'nski on the three point Pick interpolation problem on the polydisc proves the von Neumann inequality for 3x3 matrices. We give a detailed explanation of this using several standard reductions---credit for the main result should be attributed to Kosi\'nski.

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Greg Knese. 2015-08-26. The von Neumann inequality for 3x3 matrices. https://doi.org/10.1112/blms%2Fbdv087

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