15 citations · 36 across the 11 of their papers we have counts for
14 papers
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…
Estimate for norm of a composition operator on the Hardy-Dirichlet space
Perumal Muthukumar, Saminathan Ponnusamy, Hervé Queffélec
By using the Schur test, we give some upper and lower estimates on the norm of a composition operator on , the space of Dirichlet series with square summable coeffic…
Approximation numbers of composition operators on the Hardy space of the infinite polydisk
Daniel Li, Hervé Queffélec, L Rodríguez-Piazza
We study the composition operators of the Hardy space on D {\ell} 1 , the {\ell} 1 part of the infinite polydisk, and the behavior of their approximation numbers.
Decay rates for approximation numbers of composition operators
Hervé Queffélec, Kristian Seip
A general method for estimating the approximation numbers of composition operators on $\Ht$, using finite-dimensional model subspaces, is studied and applied in the case when the s…
Approximation numbers of composition operators on the Dirichlet space
Pascal Lefèvre, Daniel Li, Luis Rodriguez-Piazza +1
We study the decay of approximation numbers of compact composition operators on the Dirichlet space. We give upper and lower bounds for these numbers. In particular, we improve on…
Infinitesimal Carleson property for weighted measures induced by analytic self-maps of the unit disk
Daniel Li, Hervé Queffélec, Luis Rodriguez-Piazza
We prove that, for every , the pull-back measure of the measure , where is the normalized a…