Strong uniqueness and alternation theorems for relative Chebyshev centers. - Fabián E. Levis; C. V. Ridolfi; L. Zabala (J. Approx. Theory, 2023)

Corrigendum to "Strong uniqueness and alternation theorems for relative Chebyshev centers" [J. Approx. Theory, 293 (2023) 105917]. - Fabián E. Levis; C. V. Ridolfi; L. Zabala (J. Approx. Theory, 2024)

Best approximations and their extensions in Lorentz Gamma spaces. - Federico Darío Kovac; Fabián E. Levis; L. Zabala (J. Approx. Theory, 2025)