{ "id": "1804.10156", "version": "v1", "published": "2018-04-26T16:32:02.000Z", "updated": "2018-04-26T16:32:02.000Z", "title": "A non-autonomous scalar one-dimensional dissipative parabolic problem: The description of the dynamics", "authors": [ "Rita de Cássia D. S. Broche", "Alexandre N. Carvalho", "José Valero" ], "comment": "32 pages, 04 figures", "categories": [ "math.DS", "math.AP" ], "abstract": "The purpose of this paper is to give a characterization of the structure of non-autonomous attractors of the problem $u_t= u_{xx} + \\lambda u - \\beta(t)u^3$ when the parameter $\\lambda > 0$ varies. Also, we answer a question proposed in [11], concerning the complete description of the structure of the pullback attractor of the problem when $1<\\lambda <4$ and, more generally, for $\\lambda \\neq N^2$, $2 \\leq N \\in \\mathbb{N}$. We construct global bounded solutions , \"non-autonomous equilibria\", connections between the trivial solution these \"non-autonomous equilibria\" and characterize the $\\alpha$-limit and $\\omega$-limit set of global bounded solutions. As a consequence, we show that the global attractor of the associated skew-product flow has a gradient structure. The structure of the related pullback an uniform attractors are derived from that.", "revisions": [ { "version": "v1", "updated": "2018-04-26T16:32:02.000Z" } ], "analyses": { "subjects": [ "35K91", "35B32", "35B41", "37L30" ], "keywords": [ "scalar one-dimensional dissipative parabolic problem", "non-autonomous scalar one-dimensional dissipative parabolic", "description", "global bounded solutions" ], "note": { "typesetting": "TeX", "pages": 32, "language": "en", "license": "arXiv", "status": "editable" } } }