{ "id": "1708.08492", "version": "v1", "published": "2017-08-28T19:20:18.000Z", "updated": "2017-08-28T19:20:18.000Z", "title": "Martingale approximations for random fields", "authors": [ "Magda Peligrad", "Na Zhang" ], "comment": "11 pages", "categories": [ "math.PR" ], "abstract": "In this paper we provide necessary and sufficient conditions for the mean square approximation of a random field with an ortho-martingale. The conditions are formulated in terms of projective criteria. Applications are given to linear and nonlinear random fields with independent innovations.", "revisions": [ { "version": "v1", "updated": "2017-08-28T19:20:18.000Z" } ], "analyses": { "subjects": [ "60G60", "60G48", "60F05", "60G10" ], "keywords": [ "martingale approximations", "mean square approximation", "nonlinear random fields", "sufficient conditions", "independent innovations" ], "note": { "typesetting": "TeX", "pages": 11, "language": "en", "license": "arXiv", "status": "editable" } } }