{ "id": "1205.2534", "version": "v1", "published": "2012-05-11T14:19:50.000Z", "updated": "2012-05-11T14:19:50.000Z", "title": "Trajectory attractors for the Sun-Liu model for nematic liquid crystals in 3D", "authors": [ "Sergio Frigeri", "Elisabetta Rocca" ], "comment": "32 pages", "categories": [ "math.AP" ], "abstract": "In this paper we prove the existence of a trajectory attractor (in the sense of V.V. Chepyzhov and M.I. Vishik) for a nonlinear PDE system coming from a 3D liquid crystal model accounting for stretching effects. The system couples a nonlinear evolution equation for the director d (introduced in order to describe the preferred orientation of the molecules) with an incompressible Navier-Stokes equation for the evolution of the velocity field u. The technique is based on the introduction of a suitable trajectory space and of a metric accounting for the double-well type nonlinearity contained in the director equation. Finally, a dissipative estimate is obtained by using a proper integrated energy inequality. Both the cases of (homogeneous) Neumann and (non-homogeneous) Dirichlet boundary conditions for d are considered.", "revisions": [ { "version": "v1", "updated": "2012-05-11T14:19:50.000Z" } ], "analyses": { "keywords": [ "nematic liquid crystals", "trajectory attractor", "sun-liu model", "3d liquid crystal model accounting", "proper integrated energy inequality" ], "tags": [ "journal article" ], "publication": { "doi": "10.1088/0951-7715/26/4/933", "journal": "Nonlinearity", "year": 2013, "month": "Apr", "volume": 26, "number": 4, "pages": 933 }, "note": { "typesetting": "TeX", "pages": 32, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2013Nonli..26..933F" } } }