{ "id": "2205.09490", "version": "v1", "published": "2022-05-19T12:00:25.000Z", "updated": "2022-05-19T12:00:25.000Z", "title": "Operator estimates for non-periodically perforated domains with Dirichlet and nonlinear Robin conditions: strange term", "authors": [ "Denis I. Borisov" ], "categories": [ "math.AP", "math-ph", "math.MP", "math.SP" ], "abstract": "We consider a boundary value problem for a general second order linear equation in a domain with an arbitrary fine perforation. The latter is made by small cavities; both the shapes of the cavities and their distribution are arbitrary. The boundaries of the cavities are subject either the Dirichlet or a nonlinear Robin condition. On the perforation, certain rather weak conditions are imposed to ensure that under the homogenization procedure we obtain a similar problem in a non-perforated domain with an additional potential in the equation usually called a strange term. Our main results state the convergence of the solution of the perturbed problem to that of the homogenized one in $W_2^1$- and $L_2$-norms uniformly in $L_2$-norm of the right hand side in the equation. The estimates for the convergence rates are established and their order sharpness is discussed.", "revisions": [ { "version": "v1", "updated": "2022-05-19T12:00:25.000Z" } ], "analyses": { "subjects": [ "35B27", "35B40" ], "keywords": [ "nonlinear robin condition", "strange term", "non-periodically perforated domains", "operator estimates", "general second order linear equation" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }