2 papers
math.LO2025
Directed schemes of ideals and cardinal characteristics, I: the meager additive ideal
Miguel A. Cardona, Diego A. Mejía, Ismael E. Rivera-Madrid
We introduce the notion of directed scheme of ideals to characterize peculiar ideals on the reals, which comes from a formalization of the framework of Yorioka ideals for strong me…
math.CV2024
On an Internal Characterization of Horocyclically Convex Domains in the Unit Disk
Juan Arango, Hugo Arbeláez, Diego Mejía
A proper subdomain of the unit disk is horocyclically convex (horo-convex) if, for every , there exists a horodisk such that $ω…