14 citations · 29 across the 24 of their papers we have counts for
Showing 2019Show all
2 papers · 1 filter
math.FA2019
Compactification, and beyond, of composition operators on Hardy spaces by weights
Pascal Lefèvre, Daniel Li, Hervé Queffélec +1
We study when multiplication by a weight can turn a non-compact composition operator on H 2 into a compact operator, and when it can be in Schatten classes. The q-summing case in H…
math.FA2019
An extremal composition operator on the Hardy space of the bidisk with small approximation numbers
Daniel Li, Hervé Queffélec, Luis Rodríguez-Piazza
We construct an analytic self-map of the bidisk whose image touches the distinguished boundary, but whose approximation numbers of the associated composition op…