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math.FA2020
Interplay between complex symmetry and Koenigs eigenfunctions
S. Waleed Noor, Osmar R. Severiano
We investigate the relationship between the complex symmetry of composition operators induced on the classical Hardy space by an analytic self-map…
math.FA2020
Universal Toeplitz operators on the Hardy space over the polydisk
Marcos Ferreira, S. Waleed Noor
The Invariant Subspace Problem (ISP) for Hilbert spaces asks if every bounded linear operator has a non-trivial closed invariant subspace. Due to the existence of universal operato…