{ "id": "1403.7572", "version": "v1", "published": "2014-03-29T00:23:20.000Z", "updated": "2014-03-29T00:23:20.000Z", "title": "A Meshkov-type construction for the borderline case", "authors": [ "Blair Davey" ], "comment": "15 pages", "categories": [ "math.AP" ], "abstract": "We construct functions $u: \\mathbb{R}^2 \\to \\mathbb{C}$ that satisfy an elliptic eigenvalue equation of the form $-\\Delta u + W \\cdot \\nabla u + V u = \\lambda u$, where $\\lambda \\in \\mathbb{C}$, and $V$ and $W$ satisfy $|V(x)| \\lesssim ^{-N}$, and $|W(x)| \\lesssim ^{-P}$, with $\\min\\{N, P\\} = 1/2$. For $|x|$ sufficiently large, these solutions satisfy $|u(x)| \\lesssim \\exp(- c|x|)$. In the author's previous work, examples of solutions over $\\mathbb{R}^2$ were constructed for all $N, P$ such that $\\min\\{N,P\\} \\in [0, 1/2)$. These solutions were shown to have the optimal rate of decay at infinity. A recent result of Lin and Wang shows that the constructions presented in this note for the borderline case of $\\min\\{N, P\\} = 1/2$ also have the optimal rate of decay at infinity.", "revisions": [ { "version": "v1", "updated": "2014-03-29T00:23:20.000Z" } ], "analyses": { "subjects": [ "35J10", "35J15", "35B60" ], "keywords": [ "borderline case", "meshkov-type construction", "optimal rate", "elliptic eigenvalue equation", "construct functions" ], "note": { "typesetting": "TeX", "pages": 15, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2014arXiv1403.7572D" } } }