{ "id": "2204.13964", "version": "v1", "published": "2022-04-29T09:25:42.000Z", "updated": "2022-04-29T09:25:42.000Z", "title": "Analyticity of positive semigroups is inherited under domination", "authors": [ "Jochen Glück" ], "comment": "4 pages", "categories": [ "math.FA" ], "abstract": "For positive $C_0$-semigroups $S$ and $T$ on a Banach lattice such that $S(t) \\le T(t)$ for all times $t$, we prove that analyticity of $T$ implies analyticity of $S$. This answers an open problem posed by Arendt in 2004. Our proof is based on a spectral theoretic argument: we apply Perron-Frobenius theory to multiplication operators that are induced by $S$ and $T$ on a vector-valued function space.", "revisions": [ { "version": "v1", "updated": "2022-04-29T09:25:42.000Z" } ], "analyses": { "subjects": [ "47D06", "47B65", "47A10" ], "keywords": [ "positive semigroups", "domination", "spectral theoretic argument", "banach lattice", "vector-valued function space" ], "note": { "typesetting": "TeX", "pages": 4, "language": "en", "license": "arXiv", "status": "editable" } } }