14 citations · 29 across the 24 of their papers we have counts for
27 papers
Compactification and decompactification by weights on Bergman spaces
Pascal Lefèvre, Daniel Li, Hervé Queffélec +1
We characterize the symbols for which there exists a weight w such that the weighted composition operator M w C is compact on the weighted Bergman space B 2 . We also ch…
The Furstenberg set and its random version
Aihua Fan, Hervé Queffélec, Martine Queffélec
We study some number-theoretic, ergodic and harmonic analysis properties of the Furstenberg set of integers and compare them to those of its random analogue .…
Riesz projection and bounded mean oscillation for Dirichlet series
Sergei Konyagin, Hervé Queffélec, Eero Saksman +1
We prove that the norm of the Riesz projection from to is for all only if , thus solving a problem posed by Marzo and Se…
Comparison of singular numbers of composition operators on different Hilbert spaces of analytic functions
Hervé Queffélec, Pascal Lefèvre, Daniel Li +1
We compare the rate of decay of singular numbers of a given composition operator acting on various Hilbert spaces of analytic functions on the unit disk $\D$. We show that for the…
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…
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…