Rodríguez Bernal, Aníbal2023-06-202023-06-202012-011139-113810.1007/s13163-011-0064-9https://hdl.handle.net/20.500.14352/42473In this paper we consider linear parabolic problems when some reaction and potential terms are concentrated in a neighborhood of a portion I" of the boundary. This neighborhood shrinks to I" as a parameter epsilon goes to zero. Then we derive the limit equation which has some new terms on I". We also analyze the regularity and convergence of the solutions.engjournal articlehttp://link.springer.com/content/pdf/10.1007%2Fs13163-011-0064-9http://link.springer.com/restricted access517.986Singular perturbationConcentrating potentialsPerturbation of analytic semigroupsResolvent estimatesFunciones (Matemáticas)1202 Análisis y Análisis Funcional