{ "id": "1808.01470", "version": "v1", "published": "2018-08-04T11:56:02.000Z", "updated": "2018-08-04T11:56:02.000Z", "title": "A note about EC-$(s,t)$-weak tractability of multivariate approximation with analytic Korobov kernels", "authors": [ "Heping Wang" ], "comment": "18 pages", "categories": [ "math.NA" ], "abstract": "This note is devoted to discussing multivariate approximation of continuous functions on $[0,1]^d$ with analytic Korobov kernels in the worst and average case settings. We only consider algorithms that use finitely many evaluations of arbitrary continuous linear functionals. We study EC-$(s, t)$-weak tractability under the absolute or normalized error criterion, and obtain necessary and sufficient conditions for $0<\\min(s,t)<1$ and $\\max(s,t)\\le 1$ in the worst case setting and for $s,t>0$ in the average case setting.", "revisions": [ { "version": "v1", "updated": "2018-08-04T11:56:02.000Z" } ], "analyses": { "subjects": [ "41A25", "41A63", "65D15", "65Y20" ], "keywords": [ "analytic korobov kernels", "weak tractability", "average case setting", "arbitrary continuous linear functionals", "discussing multivariate approximation" ], "note": { "typesetting": "TeX", "pages": 18, "language": "en", "license": "arXiv", "status": "editable" } } }