{ "id": "1809.01690", "version": "v1", "published": "2018-09-05T18:49:00.000Z", "updated": "2018-09-05T18:49:00.000Z", "title": "Continuity of attractors for $\\mathcal{C}^1$ perturbations of a smooth domain", "authors": [ "Antônio L. Pereira" ], "categories": [ "math.DS" ], "abstract": "We consider a family of semilinear parabolic problems with nonlinear boundary conditions \\[ \\left\\{ \\begin{aligned} u_t(x,t)&=\\Delta u(x,t) -au(x,t) + f(u(x,t)) ,\\,\\,\\ x \\in \\Omega_\\epsilon \\,\\,\\,\\mbox{and}\\,\\,\\,\\,\\,\\,t>0\\,, \\\\ \\displaystyle\\frac{\\partial u}{\\partial N}(x,t)&=g(u(x,t)), \\,\\, x \\in \\partial\\Omega_\\epsilon \\,\\,\\,\\mbox{and}\\,\\,\\,\\,\\,\\,t>0\\,, \\end{aligned} \\right. \\] where $\\Omega_0 \\subset \\R^n$ is a smooth (at least $\\mathcal{C}^2$) domain , $\\Omega_{\\epsilon} = h_{\\epsilon}(\\Omega_0)$ and $h_{\\epsilon}$ is a family of diffeomorphisms converging to the identity in the $\\mathcal{C}^1$-norm. Assuming suitable regularity and dissipative conditions for the nonlinearites, we show that the problem is well posed for $\\epsilon>0$ sufficiently small in a suitable scale of fractional spaces, the associated semigroup has a global attractor $\\mathcal{A}_{\\epsilon}$ and the family $\\{\\mathcal{A}_{\\epsilon}\\}$ is continuous at $\\epsilon = 0$.", "revisions": [ { "version": "v1", "updated": "2018-09-05T18:49:00.000Z" } ], "analyses": { "subjects": [ "35B41", "35K20", "58D25" ], "keywords": [ "smooth domain", "continuity", "perturbations", "nonlinear boundary conditions", "semilinear parabolic problems" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }