{ "id": "2103.02241", "version": "v1", "published": "2021-03-03T08:07:15.000Z", "updated": "2021-03-03T08:07:15.000Z", "title": "Remarks on finite-time blow-up in a fully parabolic attraction-repulsion chemotaxis system via reduction to the Keller-Segel system", "authors": [ "Yutaro Chiyo", "Tomomi Yokota" ], "categories": [ "math.AP" ], "abstract": "This paper deals with the fully parabolic attraction-repulsion chemotaxis system, \\begin{align*} u_t=\\Delta u-\\chi\\nabla \\cdot (u\\nabla v)+\\xi \\nabla\\cdot(u \\nabla w), \\quad v_t=\\Delta v-v+u, \\quad w_t=\\Delta w-w+u, \\quad x \\in \\Omega,\\ t>0 \\end{align*} under homogeneous Neumann boundary conditions and initial conditions, where $\\Omega$ is an open ball in $\\mathbb{R}^n$ ($n \\ge 3$), $\\chi, \\xi>0$ are constants. When $w=0$, finite-time blow-up in the corresponding Keller-Segel system has already been obtained. However, finite-time blow-up in the above attraction-repulsion chemotaxis system has not yet been established. This paper provides an answer to this open problem by using a transformation with the structural advantage of the system.", "revisions": [ { "version": "v1", "updated": "2021-03-03T08:07:15.000Z" } ], "analyses": { "subjects": [ "35B44", "35Q92", "92C17" ], "keywords": [ "fully parabolic attraction-repulsion chemotaxis system", "finite-time blow-up", "keller-segel system", "homogeneous neumann boundary conditions", "paper deals" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }