{ "id": "1908.01990", "version": "v1", "published": "2019-08-06T07:19:13.000Z", "updated": "2019-08-06T07:19:13.000Z", "title": "On the Stochastic Processes on $7$-Dimensional Spheres", "authors": [ "Nurfarisha", "Adhitya Ronnie Effendie", "Muhammad Farchani Rosyid" ], "categories": [ "math-ph", "math.DG", "math.MP", "math.PR" ], "abstract": "We studied isometric stochastic flows of a Stratonovich stochastic differential equation on spheres, i.e. on the standard sphere and Gromoll-Meyer exotic sphere. The standard sphere $S^7_s$ can be constructed as the quotient manifold $\\mathrm{Sp}(2, \\mathbb{H})/S^3$ with the so-called ${\\bullet}$-action of $S^3$, whereas the Gromoll-Meyer exotic sphere $\\Sigma^7_{GM}$ as the quotient manifold $\\mathrm{Sp}(2, \\mathbb{H})/S^3$ with respect to the so-called ${\\star}$-action of $S^3$. The Stratonovich stochastic differential equation which describes a continuous-time stochastic process on the standard sphere is constructed and studied. The corresponding continuous-time stochastic process and its properties on the Gromoll-Meyer exotic sphere can be obtained by constructing a homeomorphism $h: S^7_s\\rightarrow \\Sigma^7_{GM}$. The corresponding Fokker-Planck equation and entropy rate in the Stratonovich approach is also investigated.", "revisions": [ { "version": "v1", "updated": "2019-08-06T07:19:13.000Z" } ], "analyses": { "subjects": [ "60G20", "60H10", "51H25", "57R22", "57R25", "57R50", "57R55", "57S15", "G.3.3" ], "keywords": [ "gromoll-meyer exotic sphere", "dimensional spheres", "stratonovich stochastic differential equation", "standard sphere", "continuous-time stochastic process" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }