Maximal regularity (in -sense) for abstract Cauchy problems of order one and boundary value problems of order two is studied. In general, regularity of the first problems implies regularity of the second ones; the converse is shown to hold if the underlying Banach space has the UMD property. A stronger notion of regularity, introduced by Sobolevskii, plays an important role in the proofs.
Viene studiata la regolarità massimale (in ) di problemi di Cauchy astratti di ordine uno e di problemi al contorno di ordine due. In generale, la regolarità del primo tipo di problemi implica la regolarità del secondo; l’inverso viene dimostrato quando lo spazio di Banach in oggetto ha la proprietà UMD. Una nozione di regolarità forte, introdotta da Sobolevskii, ha un ruolo importante nelle dimostrazioni.
@article{RLIN_1998_9_9_4_245_0, author = {Philippe Cl\'ement and Sylvie Guerre-Delabri\`ere}, title = {On the regularity of abstract Cauchy problems and boundary value problems}, journal = {Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti Lincei. Matematica e Applicazioni}, volume = {9}, year = {1998}, pages = {245-266}, zbl = {0928.34042}, mrnumber = {1722785}, language = {en}, url = {http://dml.mathdoc.fr/item/RLIN_1998_9_9_4_245_0} }
Clément, Philippe; Guerre-Delabrière, Sylvie. On the regularity of abstract Cauchy problems and boundary value problems. Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti Lincei. Matematica e Applicazioni, Tome 9 (1998) pp. 245-266. http://gdmltest.u-ga.fr/item/RLIN_1998_9_9_4_245_0/
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