11 citations · 34 across the 30 of their papers we have counts for
37 papers
On Lengths of
Fiona Han, Jennifer Kenkel, Daniel Li +2
In this paper, we provide a formula for the vector space dimension of the ring over when all li…
On composition operators on the Wiener algebra of Dirichlet series
Daniel Li, Hervé Queffélec, Luis Rodríguez-Piazza
We show that the symbol of a bounded composition operator on the Wiener algebra of Dirichlet series does not need to belong to this algebra. Our example even gives an absolutely su…
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…
Boundedness of composition operators on general weighted Hardy spaces of analytic functions
Pascal Lefèvre, Daniel Li, Hervé Queffélec +1
We characterize the (essentially) decreasing sequences of positive numbers = ( n) for which all composition operators on H 2 () are bounded, where H 2 () is the space…
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…