| HAL : hal-00649363, version 1 |
| arXiv : 1112.2090 |
| Fiche détaillée | Récupérer au format |
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| A coarea-type formula for the relaxation of a generalized elastica functional |
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Simon Masnou 1Giacomo Nardi 2 |
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| (06/12/2011) |
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| We consider in R^2 the generalized elastica functional defined, for smooth functions, as the p-elastica energies of the level lines integrated over all levels. Extending the functional to L1, we study its L1-lower semicontinuous envelope and we prove that, for any u in BV, the envelope at u can be represented by a coarea-type formula involving suitable collections of W2,p curves that cover the essential boundaries of the level sets of u. |
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| 1 : | Institut Camille Jordan (ICJ) |
| CNRS : UMR5208 – Université Claude Bernard - Lyon I – Ecole Centrale de Lyon – Institut National des Sciences Appliquées (INSA) - Lyon | |
| 2 : | Laboratoire Jacques-Louis Lions (LJLL) |
| CNRS : UMR7598 – Université Pierre et Marie Curie [UPMC] - Paris VI | |
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| MMCS |
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| Domaine | : | Mathématiques/Optimisation et contrôle |
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| elastica – curvature – relaxation – BV |
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| Liste des fichiers attachés à ce document : | |||||
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| hal-00649363, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00649363 | |
| oai:hal.archives-ouvertes.fr:hal-00649363 | |
| Contributeur : Simon Masnou | |
| Soumis le : Jeudi 8 Décembre 2011, 23:49:14 | |
| Dernière modification le : Vendredi 9 Décembre 2011, 14:13:04 | |