{ "id": "1706.07266", "version": "v1", "published": "2017-06-22T11:35:32.000Z", "updated": "2017-06-22T11:35:32.000Z", "title": "Fractional Partial Differential Equations with Boundary Conditions", "authors": [ "Boris Baeumer", "Mihály Kovács", "Harish Sankaranarayanan" ], "categories": [ "math.AP", "math.NA", "math.PR" ], "abstract": "We identify the stochastic processes associated with one-sided fractional partial differential equations on a bounded domain with various boundary conditions. This is essential for modelling using spatial fractional derivatives. We show well-posedness of the associated Cauchy problems in $C_0(\\Omega)$ and $L_1(\\Omega)$. In order to do so we develop a new method of embedding finite state Markov processes into Feller processes and then show convergence of the respective Feller processes. This also gives a numerical approximation of the solution. The proof of well-posedness closes a gap in many numerical algorithm articles approximating solutions to fractional differential equations that use the Lax-Richtmyer Equivalence Theorem to prove convergence without checking well-posedness.", "revisions": [ { "version": "v1", "updated": "2017-06-22T11:35:32.000Z" } ], "analyses": { "keywords": [ "boundary conditions", "finite state markov processes", "algorithm articles approximating solutions", "one-sided fractional partial differential equations" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }