{ "id": "1103.0113", "version": "v1", "published": "2011-03-01T09:30:43.000Z", "updated": "2011-03-01T09:30:43.000Z", "title": "Determining a first order perturbation of the biharmonic operator by partial boundary measurements", "authors": [ "Katsiaryna Krupchyk", "Matti Lassas", "Gunther Uhlmann" ], "categories": [ "math.AP", "math-ph", "math.MP" ], "abstract": "We consider an operator $\\Delta^2 + A(x)\\cdot D+q(x)$ with the Navier boundary conditions on a bounded domain in $R^n$, $n\\ge 3$. We show that a first order perturbation $A(x)\\cdot D+q$ can be determined uniquely by measuring the Dirichlet--to--Neumann map on possibly very small subsets of the boundary of the domain. Notice that the corresponding result does not hold in general for a first order perturbation of the Laplacian.", "revisions": [ { "version": "v1", "updated": "2011-03-01T09:30:43.000Z" } ], "analyses": { "subjects": [ "35R30", "31B20", "31B30", "35J40" ], "keywords": [ "first order perturbation", "partial boundary measurements", "biharmonic operator", "navier boundary conditions", "determining" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2011arXiv1103.0113K" } } }