{ "id": "1606.08208", "version": "v1", "published": "2016-06-27T11:06:19.000Z", "updated": "2016-06-27T11:06:19.000Z", "title": "The winding of stationary Gaussian processes", "authors": [ "Jeremiah Buckley", "Naomi Feldheim" ], "comment": "27 pages", "categories": [ "math.PR", "math.CA", "math.CV" ], "abstract": "This paper studies the winding of a continuously differentiable Gaussian stationary process $f:\\mathbb{R}\\to\\mathbb{C}$ in the interval $[0,T]$. We give formulae for the mean and the variance of this random variable. The variance is shown to always grow at least linearly with $T$, and conditions for it to be asymptotically linear or quadratic are given. Moreover, we show that if the covariance function together with its second derivative are in $L^2(\\mathbb{R})$, then the winding obeys a central limit theorem. These results correspond to similar results for zeroes of real-valued stationary Gaussian functions by Cuzick, Slud and others.", "revisions": [ { "version": "v1", "updated": "2016-06-27T11:06:19.000Z" } ], "analyses": { "subjects": [ "60G15", "60G10", "30E99" ], "keywords": [ "stationary gaussian processes", "central limit theorem", "real-valued stationary gaussian functions", "continuously differentiable gaussian stationary process", "results correspond" ], "note": { "typesetting": "TeX", "pages": 27, "language": "en", "license": "arXiv", "status": "editable" } } }