{ "id": "1603.04148", "version": "v1", "published": "2016-03-14T06:49:27.000Z", "updated": "2016-03-14T06:49:27.000Z", "title": "The Liouville theorem and the $L^2$ decay of the FENE dumbbell model of polymeric flows", "authors": [ "Luo Wei", "Yin Zhaoyang" ], "comment": "20 pages", "categories": [ "math.AP" ], "abstract": "In this paper we mainly investigate the finite extensible nonlinear elastic (FENE) dumbbell model with dimension $d\\geq2$ in the whole space. We first proved that there is only the trivial solution for the steady-state FENE model under some integrable condition. Our obtained results generalize and cover the classical results to the stationary Navier-Stokes equations. Then, we study about the $L^2$ decay of the co-rotation FENE model. Concretely, the $L^2$ decay rate of the velocity is $(1+t)^{-\\frac{d}{4}}$ when $d\\geq3$, and $\\ln^{-k}{(e+t)}, k\\in \\mathds{N}^{+}$ when $d=2$. This result improves considerably the recent result of \\cite{Schonbek2} by Schonbek. Moreover, the decay of general FENE model has been considered.", "revisions": [ { "version": "v1", "updated": "2016-03-14T06:49:27.000Z" } ], "analyses": { "keywords": [ "fene dumbbell model", "liouville theorem", "polymeric flows", "stationary navier-stokes equations", "finite extensible nonlinear elastic" ], "note": { "typesetting": "TeX", "pages": 20, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2016arXiv160304148W" } } }