Michael Hartz

activity

20122026

most citedBoundary representations of operator spaces, and compact rectangular matrix convex sets

210 citations · 530 across the 38 of their papers we have counts for

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2 papers · 1 filter

math.CV2025

Inner factors of Dirichlet space functions

Michael Hartz, Stefan Richter

Every function in the Dirichlet space on the unit disc has an inner/outer factorization. We study which inner functions occur in this way. For Blaschke products, this is the well k…

math.CV2017

Ideal membership in $H^{\infty}$ : Toeplitz corona approach

Michael Hartz, Brett D. Wick

We study the ideal membership problem in $H^{\infty}$ on the unit disc. Thus, given functions $f, f_{1}, \dots, f_{n}$ in $H^{\infty}$ , we seek sufficient conditions on the size of $f$ in or…

Inner factors of Dirichlet space functions

Ideal membership in H∞: Toeplitz corona approach

Ideal membership in $H^{\infty}$ : Toeplitz corona approach