{ "id": "2305.00734", "version": "v1", "published": "2023-05-01T09:26:10.000Z", "updated": "2023-05-01T09:26:10.000Z", "title": "Convergence of processes time-changed by Gaussian multiplicative chaos", "authors": [ "Takumu Ooi" ], "comment": "41 pages", "categories": [ "math.PR" ], "abstract": "As represented by Liouville measure, Gaussian multiplicative chaos is a random measure constructed from Gaussian fields. We prove the convergence of processes time-changed by Gaussian multiplicative chaos under certain assumptions when Gaussian multiplicative chaos on bounded measurable sets is square integrable (the $L^2$-regime). As examples of the main result, we prove that, in half of the $L^2$-regime, the scaling limit of the ``Liouville simple random walk'' on $\\mathbb{Z}^2$ is Liouville Brownian motion and, in the whole $L^2$-regime, ``Liouville $\\alpha$-stable processes'' on $\\mathbb{R}$ converge weakly to the ``Liouville Cauchy process'' as $\\alpha \\to 1$.", "revisions": [ { "version": "v1", "updated": "2023-05-01T09:26:10.000Z" } ], "analyses": { "subjects": [ "60K37", "31C25", "60J55", "60G57", "60G60" ], "keywords": [ "gaussian multiplicative chaos", "convergence", "liouville simple random walk", "liouville cauchy process", "liouville brownian motion" ], "note": { "typesetting": "TeX", "pages": 41, "language": "en", "license": "arXiv", "status": "editable" } } }