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Journal of Convex Analysis 07 (2000), No. 2, 271--298 Copyright Heldermann Verlag 2000 On the Lavrentieff Phenomenon for some Classes of Dirichlet Minimum Problems Riccardo De Arcangelis Dip. di Matematica ed Applicazioni, Complesso Monte S. Angelo, 80126 Napoli, Italy Cristina Trombetti Dip. di Matematica ed Applicazioni, Complesso Monte S. Angelo, 80126 Napoli, Italy Starting from some recent results of the authors, the Lavrentieff phenomenon between BV functions and smooth ones for the functional appearing in some classes of relaxed Dirichlet problems is studied. The occurrence of the phenomenon is first discussed by means of an example, and then completely characterized. Sufficient conditions implying the absence of the phenomenon are also proved, and some relaxation properties of the above functionals are also established. [ Fulltext-pdf (668 KB)] |