{ "id": "1811.03143", "version": "v1", "published": "2018-11-07T21:03:07.000Z", "updated": "2018-11-07T21:03:07.000Z", "title": "Abundance of entire solutions to nonlinear elliptic equations by the variational method", "authors": [ "L. M. Lerman", "P. E. Naryshkin", "A. I. Nazarov" ], "comment": "30 pages, 28 figures", "categories": [ "math.AP" ], "abstract": "We study entire bounded solutions to the equation $\\Delta u - u + u^3 = 0$ in $\\mathbb R^2$. Our approach is purely variational and is based on concentration arguments and symmetry considerations. This method allows us to construct in a unified way several types of solutions with various symmetries (radial, breather type, rectangular, triangular, hexagonal, etc.), both positive and sign-changing. The method is also applicable for more general equations in any dimension.", "revisions": [ { "version": "v1", "updated": "2018-11-07T21:03:07.000Z" } ], "analyses": { "subjects": [ "35J20", "35J91", "35J92" ], "keywords": [ "nonlinear elliptic equations", "entire solutions", "variational method", "study entire bounded solutions", "general equations" ], "note": { "typesetting": "TeX", "pages": 30, "language": "en", "license": "arXiv", "status": "editable" } } }