{ "id": "2306.04402", "version": "v1", "published": "2023-06-07T13:02:15.000Z", "updated": "2023-06-07T13:02:15.000Z", "title": "Operators on anti-dual pairs: Supremum and infimum of positive operators", "authors": [ "Zsigmond Tarcsay", "Ábel Göde" ], "comment": "9 pages", "categories": [ "math.FA" ], "abstract": "Our purpose in this note is to investigate the order properties of positive operators from a locally convex space into its conjugate dual. We introduce a natural generalization of the Busch-Gudder strength function and we prove Kadison's anti-lattice theorem and Ando's result on the infimum of positive operators in that context.", "revisions": [ { "version": "v1", "updated": "2023-06-07T13:02:15.000Z" } ], "analyses": { "subjects": [ "47B65", "46A20" ], "keywords": [ "positive operators", "anti-dual pairs", "busch-gudder strength function", "kadisons anti-lattice theorem", "andos result" ], "note": { "typesetting": "TeX", "pages": 9, "language": "en", "license": "arXiv", "status": "editable" } } }