{ "id": "2301.13129", "version": "v1", "published": "2023-01-30T18:07:31.000Z", "updated": "2023-01-30T18:07:31.000Z", "title": "Resolvent bounds for Lipschitz potentials in dimension two and higher with singularities at the origin", "authors": [ "Donnell Obovu" ], "categories": [ "math.AP", "math.SP" ], "abstract": "We consider, for $h,E>0$, the semiclassical Schr\\\"odinger operator $-h^2\\Delta + V - E$ in dimension two. The potential $V$, and its radial derivative $\\partial_{r}V$ are bounded away from the origin, have long-range decay and $V$ is bounded by $r^{-\\delta}$ near the origin while $\\partial_{r}V$ is bounded by $r^{-1-\\delta}$, where $0\\leq\\delta\\leq 4(\\sqrt{2}-1)$. In this setting, we show that the resolvent bound is exponential in $h^{-1}$, while the exterior resolvent bound is linear in $h^{-1}$.", "revisions": [ { "version": "v1", "updated": "2023-01-30T18:07:31.000Z" } ], "analyses": { "keywords": [ "lipschitz potentials", "singularities", "exterior resolvent bound", "long-range decay", "bounded away" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }