{ "id": "1401.6997", "version": "v1", "published": "2014-01-27T20:36:17.000Z", "updated": "2014-01-27T20:36:17.000Z", "title": "Weak version of restriction estimates for spheres and paraboloids in finite fields", "authors": [ "Hunseok Kang", "Doowon Koh" ], "comment": "12 pages", "categories": [ "math.CA" ], "abstract": "We study L^p-L^r restriction estimates for algebraic varieties in d-dimensional vector spaces over finite fields. Unlike the Euclidean case, if the dimension $d$ is even, then it is conjectured that the L^{(2d+2)/(d+3)}-L^2 Stein-Tomas restriction result can be improved to the L^{(2d+4)/(d+4)}-L^2 estimate for both spheres and paraboloids in finite fields. In this paper we show that the conjectured L^p-L^2 restriction estimate holds in the specific case when test functions under consideration are restricted to d-coordinate functions or homogeneous functions of degree zero. To deduce our result, we use the connection between the restriction phenomena for our varieties in $d$ dimensions and those for homogeneous varieties in (d+1)dimensions.", "revisions": [ { "version": "v1", "updated": "2014-01-27T20:36:17.000Z" } ], "analyses": { "subjects": [ "42B05", "43A32", "43A15" ], "keywords": [ "finite fields", "weak version", "paraboloids", "stein-tomas restriction result", "restriction estimate holds" ], "note": { "typesetting": "TeX", "pages": 12, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2014arXiv1401.6997K" } } }