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math.FA2026
Carleson measures, tent embeddings, and Volterra-type integral operators on the unit ball
Xiaofen Lv, Xiaomin Tang, Jani A. Virtanen
In this paper, we establish a sharp comparison between Carleson-cube and Bergman-metric-ball conditions on the open unit ball $\B$ and combine it with a Berezin-type characterizati…
math.FA2024
The Hilbert matrix done right
A. Montes-Rodríguez, J. A. Virtanen
We give very simple proofs of the classical results of Magnus and Hill on the spectral properties of the Hilbert matrix whi…