%0 Journal Article %T Radial representation of lower semicontinuous envelope %+ Laboratoire de Mécanique et Génie Civil (LMGC) %+ Mathématiques et Modélisations en Mécanique (M3) %+ Mathématiques, Informatique, Physique, et Applications / Université de Nîmes (MIPA) %A Anza Hafsa, Omar %A Mandallena, Jean-Philippe %< avec comité de lecture %@ 1972-6724 %J Bollettino dell'Unione Matematica Italiana %I Springer Verlag %V 7 %N 1 %P 1-18 %8 2014-03 %D 2014 %Z 1211.6504 %R 10.1007/s40574-014-0001-1 %K Ru-usc functions %K Relaxation with constraints %K Radial representation %K Star-shaped set %K Extension on the boundary %Z Mathematics [math]/Classical Analysis and ODEs [math.CA]Journal articles %X We give an extension to a nonconvex setting of the classical radial representation result for lower semicontinuous envelope of a convex function on the boundary of its effective domain. We introduce the concept of radial uniform upper semicontinuity which plays the role of convexity, and allows to prove a radial representation result for nonconvex functions. An application to the relaxation of multiple integrals with constraints on the gradient is given. %G English %2 https://hal.science/hal-00958312/document %2 https://hal.science/hal-00958312/file/Anza_Mandallena_Radial_representation_Boll.Uni.Math.Ita._2014.pdf %L hal-00958312 %U https://hal.science/hal-00958312 %~ CNRS %~ LMGC %~ UNIMES %~ MIPS %~ UNIV-MONTPELLIER %~ UM-2015-2021