{ "id": "1105.5303", "version": "v4", "published": "2011-05-26T14:26:27.000Z", "updated": "2013-08-02T08:17:14.000Z", "title": "Exact Solutions of Nonlinear Partial Differential Equations by the Method of Group Foliation Reduction", "authors": [ "Stephen C. Anco", "Sajid Ali", "Thomas Wolf" ], "comment": "Typos in the solutions are corrected", "journal": "SIGMA 7 (2011), 066, 11 pages", "doi": "10.3842/SIGMA.2011.066", "categories": [ "math-ph", "math.AP", "math.MP" ], "abstract": "A novel symmetry method for finding exact solutions to nonlinear PDEs is illustrated by applying it to a semilinear reaction-diffusion equation in multi-dimensions. The method uses a separation ansatz to solve an equivalent first-order group foliation system whose independent and dependent variables respectively consist of the invariants and differential invariants of a given one-dimensional group of point symmetries for the reaction-diffusion equation. With this group-foliation reduction method, solutions of the reaction-diffusion equation are obtained in an explicit form, including group-invariant similarity solutions and travelling-wave solutions, as well as dynamically interesting solutions that are not invariant under any of the point symmetries admitted by this equation.", "revisions": [ { "version": "v4", "updated": "2013-08-02T08:17:14.000Z" } ], "analyses": { "keywords": [ "nonlinear partial differential equations", "group foliation reduction", "exact solutions", "reaction-diffusion equation", "equivalent first-order group foliation system" ], "tags": [ "journal article" ], "publication": { "journal": "SIGMA", "year": 2011, "month": "Jul", "volume": 7, "pages": "066" }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2011SIGMA...7..066A" } } }