RT Journal Article T1 Flux terms and Robin boundary conditions as limit of reactions and potentials concentrating at the boundary A1 Arrieta Algarra, José María A1 Jiménez Casas, Ángela A1 Rodríguez Bernal, Aníbal AB We analyze the limit of the solutions of an elliptic problem when some reaction and potential terms are concentrated in a neighborhood of a portion Gamma of the boundary and this neighborhood shrinks to Gamma as a parameter goes to zero.We prove that this family of solutions converges in certain Sobolev spaces and also in the sup norm, to the solution of an elliptic problem where the reaction term and the concentrating potential are transformed into a flux condition and a potential on Gamma. PB Universidad Autónoma Madrid SN 0213-2230 YR 2008 FD 2008 LK https://hdl.handle.net/20.500.14352/50298 UL https://hdl.handle.net/20.500.14352/50298 DS Docta Complutense RD 6 abr 2025