{ "id": "2208.02581", "version": "v1", "published": "2022-08-04T11:10:50.000Z", "updated": "2022-08-04T11:10:50.000Z", "title": "A mass transport approach to the optimization of adapted couplings of real valued random variables", "authors": [ "Rémi Lassalle" ], "comment": "Document of work in progess", "categories": [ "math.PR", "math.OC" ], "abstract": "In this work, we investigate an optimization problem over adapted couplings between pairs of real valued random variables, possibly describing random times. We relate those couplings to a specific class of causal transport plans between probabilities on the set of real numbers endowed with a filtration, for which their provide a specific representation, which is motivated by a precise characterization of the corresponding deterministic transport plans. From this, under mild hypothesis, the existence of a solution to the problem investigated here is obtained. Furthermore, several examples are provided, within this explicit framework.", "revisions": [ { "version": "v1", "updated": "2022-08-04T11:10:50.000Z" } ], "analyses": { "keywords": [ "real valued random variables", "mass transport approach", "adapted couplings", "optimization", "corresponding deterministic transport plans" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }