Strong connectedness of the invertibles in a finite subdiagonal algebra

Marsalli, Michael; West, Graeme

doi:10.1090/S0002-9939-00-05388-0

Strong connectedness of the invertibles in a finite subdiagonal algebra
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by Michael Marsalli and Graeme West PDF

Proc. Amer. Math. Soc. 128 (2000), 2967-2972 Request permission

Abstract:

Suppose $H^\infty$ is a finite, subdiagonal subalgebra of a von Neumann algebra. We show that the invertible group of $H^\infty$ is strongly connected.

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