Champs magnétiques classiques et quantiques
Si calcolano alcuni spazi di interpolazione fra spazi di funzioni hölderiane.
Si caratterizzano alcuni spazi di interpolazione tra spazi di funzioni continue e domini di operatori ellittici del 2° ordine.
In this work we consider a solid body constituted by a nonhomogeneous elastoplastic material, submitted to a density of body forces and a density of forces acting on the boundary where the real is the loading parameter. The problem is to determine, in the case of an unbounded convex of elasticity, the Limit load denoted by beyond which there is a break of the structure. The case of a bounded convex of elasticity is done in [El-Fekih and Hadhri, RAIRO: Modél. Math. Anal. Numér. 29 (1995)...
In this work we consider a solid body constituted by a nonhomogeneous elastoplastic material, submitted to a density of body forces and a density of forces acting on the boundary where the real is the loading parameter. The problem is to determine, in the case of an unbounded convex of elasticity, the Limit load denoted by beyond which there is a break of the structure. The case of a bounded convex of elasticity is done in [El-Fekih and Hadhri, RAIRO: Modél. Math. Anal. Numér. 29 (1995)...
We show the equivalence of some different definitions of p-superharmonic functions given in the literature. We also provide several other characterizations of p-superharmonicity. This is done in complete metric spaces equipped with a doubling measure and supporting a Poincaré inequality. There are many examples of such spaces. A new one given here is the union of a line (with the one-dimensional Lebesgue measure) and a triangle (with a two-dimensional weighted Lebesgue measure). Our results also...
We compare several definitions of weak solutions to second order partial differential equations with nonnegative characteristic form.
This paper is devoted to the study of cloaking via anomalous localized resonance (CALR) in the two- and three-dimensional quasistatic regimes. CALR associated with negative index materials was discovered by Milton and Nicorovici [21] for constant plasmonic structures in the two-dimensional quasistatic regime. Two key features of this phenomenon are the localized resonance, i.e., the fields blow up in some regions and remain bounded in some others, and the connection between the localized resonance...