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math.FA2026
Universal operators: topology and consequences of ISP failure
João Carmo, Ben-Hur Eidt, Waleed Noor
Assuming a negative answer to the invariant subspace problem for separable complex Hilbert spaces, we prove that every universal operator has a continuum of minimal infinite-dimens…
math.DS2026
Shadowing phenomenon for composition operators on the Hardy space
Artur Blois, Ben-Hur Eidt, Paulo Lupatini +1
Let be a holomorphic self-map of the open unit disk In this article, we study the shadowing phenomenon for composition operators on the Hardy spac…