{ "id": "0807.5001", "version": "v1", "published": "2008-07-31T07:34:47.000Z", "updated": "2008-07-31T07:34:47.000Z", "title": "Decomposition of order statistics of semimartingales using local times", "authors": [ "Raouf Ghomrasni", "Olivier Menoukeu Pamen" ], "comment": "11 pages", "categories": [ "math.PR", "math.ST", "q-fin.ST", "stat.TH" ], "abstract": "In a recent work \\cite{BG}, given a collection of continuous semimartingales, authors derive a semimartingale decomposition from the corresponding ranked processes in the case that the ranked processes can meet more than two original processes at the same time. This has led to a more general decomposition of ranked processes. In this paper, we derive a more general result for semimartingales (not necessarily continuous) using a simpler approach. Furthermore, we also give a generalization of Ouknine \\cite{O1, O2} and Yan's \\cite{Y1} formula for local times of ranked processes", "revisions": [ { "version": "v1", "updated": "2008-07-31T07:34:47.000Z" } ], "analyses": { "subjects": [ "60J65", "60H05" ], "keywords": [ "local times", "order statistics", "semimartingale decomposition", "original processes", "general decomposition" ], "note": { "typesetting": "TeX", "pages": 11, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2008arXiv0807.5001G" } } }