{ "id": "2405.06304", "version": "v1", "published": "2024-05-10T08:19:35.000Z", "updated": "2024-05-10T08:19:35.000Z", "title": "An interpolation approach to $L^{\\infty}$ a priori estimates for elliptic problems with nonlinearity on the boundary", "authors": [ "Maya Chhetri", "Nsoki Mavinga", "Rosa Pardo" ], "categories": [ "math.AP" ], "abstract": "We establish an explicit $L^\\infty(\\Om)$ a priori estimate for weak solutions to subcritical elliptic problems with nonlinearity on the boundary, in terms of the powers of their $H^1(\\Om)$ norms. To prove our result, we combine in a novel way Moser type estimates together with elliptic regularity and Gagliardo--Nirenberg interpolation inequality. We illustrate our result with an application to subcritical problems satisfying Ambrosetti-Rabinowitz condition.", "revisions": [ { "version": "v1", "updated": "2024-05-10T08:19:35.000Z" } ], "analyses": { "subjects": [ "35B45", "35J65", "35J61", "35J15" ], "keywords": [ "elliptic problems", "priori estimate", "interpolation approach", "problems satisfying ambrosetti-rabinowitz condition", "nonlinearity" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }