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math.CT2023
Filtral pretoposes and compact Hausdorff locales
Célia Borlido, Panagis Karazeris, Luca Reggio +1
The category of compact Hausdorff locales is a pretopos which is filtral, meaning that every object is covered by one whose subobject lattice is isomorphic to the lattice of filter…
math.GN2023
Pervin spaces and Frith frames: bitopological aspects and completion
Célia Borlido, Anna Laura Suarez
A Pervin space is a set equipped with a bounded sublattice of its powerset, while its pointfree version, called Frith frame, consists of a frame equipped with a generating bounded…