3 papers
math.OA2023
On boundary representations
Kenneth R. Davidson, Michael Hartz
Let be an operator system sitting in its C*-envelope . Starting with a pure state on , let be the face of state extensions to $C^*_{\mathrm{min}}(…
math.FA2023
Spectra of Quotient Modules
Michael Didas, Jörg Eschmeier, Michael Hartz +1
We determine the Taylor spectra of quotient tuples of the -shift on Drury-Arveson spaces with finite-dimensional coefficient spaces. We show the the Taylor spectrum can be descr…
math.HO2022
Jörg Eschmeier's mathematical work
Ernst Albrecht, Raúl E. Curto, Michael Hartz +1
An outline of Jörg Eschmeier's main mathematical contributions is organized both on a historical perspective, as well as on a few distinct topics. The reader can grasp from our ess…