2 papers
math.FA2009
Discrete-time multi-scale systems
Daniel Alpay, Mamadou Mboup
We introduce multi-scale filtering by the way of certain double convolution systems. We prove stability theorems for these systems and make connections with function theory in the…
math.CV2008
A characterization of Schur multipliers between character-automorphic Hardy spaces
Daniel Alpay, Mamadou Mboup
We give a new characterization of character-automorphic Hardy spaces of order 2 and of their contractive multipliers in terms of de Branges Rovnyak spaces. Keys tools in our argume…