Abstract
Regular monomorphisms in the category of Hausdorff frames are characterized by means of a naturally defined closure operator. (Even) for the spatial Hausdorff frames, regular homomorphisms do not generally coincide with the quotients.
Regular monomorphisms in the category of Hausdorff frames are characterized by means of a naturally defined closure operator. (Even) for the spatial Hausdorff frames, regular homomorphisms do not generally coincide with the quotients.