Notions of flatness relative to a Grothendieck topology. Karazeris, Panagis — 2004 Theory and Applications of Categories [electronic only]
Categorical domain theory: Scott topology, powercategories, coherent categories. Karazeris, Panagis — 2001 Theory and Applications of Categories [electronic only]
Dense morphisms of monads. Karazeris, Panagis; Velebil, Jiří — 2007 Theory and Applications of Categories [electronic only]
Compact topologies on locally presentable categories Panagis Karazeris — 1997 Cahiers de Topologie et Géométrie Différentielle Catégoriques