2 papers
math.DS2025
The Exact -Hypercyclicity Threshold
Geivison Ribeiro
In this paper we give an affirmative answer to the problem proposed by Bayart in [J. Math. Anal. Appl. \textbf{529} (2024), 127278]: given , there exists an op…
math.FA2025
Operator Ranges and Spaceability: Extending a Result of Kitson and Timoney
Geivison Ribeiro
We revisit the results of Kitson and Timoney \emph{[J.~Math.~Anal.~Appl.~\textbf{378} (2011), 680--686]} on the spaceability of complements of operator ranges, extending one of the…