{ "id": "2108.11940", "version": "v1", "published": "2021-08-26T17:53:01.000Z", "updated": "2021-08-26T17:53:01.000Z", "title": "Large time behavior of solutions to the $3$D anisotropic Navier-Stokes equation", "authors": [ "MIkihiro Fujii" ], "comment": "28 pages", "categories": [ "math.AP" ], "abstract": "We consider the large time behavior of the solution to the $3$D Navier-Stokes equation with horizontal viscosity $\\Delta{\\rm h} u=\\partial_1^2 u+\\partial_2^2 u$ and show that the $L^p$ decay rate of the horizontal components of the velocity fields coinside to that of the $2$D heat kernel, while the vertical component behaves like the $3$D heat kernel. Moreover, we find that the asymptotic profile of the horizontal components of the velocity field is different from that of the vertical component.", "revisions": [ { "version": "v1", "updated": "2021-08-26T17:53:01.000Z" } ], "analyses": { "subjects": [ "35Q30", "35B40", "35Q35" ], "keywords": [ "large time behavior", "anisotropic navier-stokes equation", "horizontal components", "heat kernel", "velocity fields coinside" ], "note": { "typesetting": "TeX", "pages": 28, "language": "en", "license": "arXiv", "status": "editable" } } }