{ "id": "2412.20125", "version": "v1", "published": "2024-12-28T12:01:23.000Z", "updated": "2024-12-28T12:01:23.000Z", "title": "Spatial $C^1$, $C^2$, and Schauder estimates for nonstationary Stokes equations with Dini mean oscillation coefficients", "authors": [ "Hongjie Dong", "Hyunwoo Kwon" ], "comment": "30 pages", "categories": [ "math.AP" ], "abstract": "We establish the spatial differentiability of weak solutions to nonstationary Stokes equations in divergence form with variable viscosity coefficients having $L_2$-Dini mean oscillations. As a corollary, we derive local spatial Schauder estimates for such equations if the viscosity coefficient belongs to $C^\\alpha_x$. Similar results also hold for strong solutions to nonstationary Stokes equations in nondivergence form.", "revisions": [ { "version": "v1", "updated": "2024-12-28T12:01:23.000Z" } ], "analyses": { "subjects": [ "76D07", "35B45", "35B65", "35Q35" ], "keywords": [ "nonstationary stokes equations", "dini mean oscillation coefficients", "local spatial schauder estimates" ], "note": { "typesetting": "TeX", "pages": 30, "language": "en", "license": "arXiv", "status": "editable" } } }