From the 1 of 4 linked papers with an AI index.
4 papers
Complete functional calculus bounds for -contractions
Michael Hartz, Jens de Vries
The paper derives sharp, optimal bounds for the functional calculus of ρ‑contractions on Hilbert spaces when applied to matrix‑valued analytic functions on the unit disc, completin…
From Clouatre-Ostermann-Ransford to Okubo-Ando
Michael Hartz, John E. McCarthy
We prove that if is a continuous unital homomorphism of an operator algebra into , and is in the dual space of , then the completely bounded norm o…
On the Schur-Agler Norm
Michael Hartz, Yi Wang
We establish a new description of the Schur-Agler norm of a holomorphic function on the polydisc as the solution of a convex optimization problem. Consequences of this description…
Operator theory and function theory in Drury-Arveson space and its quotients
Michael Hartz, Orr Shalit
The Drury-Arveson space , also known as symmetric Fock space or the -shift space, is a Hilbert function space that has a natural -tuple of operators acting on it, whic…