{ "id": "2209.05397", "version": "v1", "published": "2022-09-08T10:06:00.000Z", "updated": "2022-09-08T10:06:00.000Z", "title": "Non-linear traces on the algebra of compact operators and majorization", "authors": [ "Masaru Nagisa", "Yasuo Watatani" ], "comment": "32 pages, 3figures. arXiv admin note: substantial text overlap with arXiv:2109.02031", "categories": [ "math.FA", "math.OA" ], "abstract": "We study non-linear traces of Choquet type and Sugeno type on the algebra of compact operators. They have certain partial additivities. We show that these partial additivities characterize non-linear traces of both Choquet type and Sugeno type respectively. There exists a close relation between non-linear traces of Choquet type and majorization theory. We study trace class operators for non-linear traces of Choquet type. More generally we discuss Schatten-von Neumann $p$-class operators for non-linear traces of Choquet type. We determine when they form Banach spaces. This is an attempt of non-commutative integration theory for non-linear traces of Choquet type on the algebra of compact operators. We also consider the triangle inequality for non-linear traces of Sugeno type.", "revisions": [ { "version": "v1", "updated": "2022-09-08T10:06:00.000Z" } ], "analyses": { "subjects": [ "46L51", "47B06", "47B10" ], "keywords": [ "compact operators", "choquet type", "sugeno type", "majorization", "partial additivities characterize non-linear traces" ], "note": { "typesetting": "TeX", "pages": 32, "language": "en", "license": "arXiv", "status": "editable" } } }