TY - GEN A1 - Karamian, Philippe A1 - Sanchez-Hubert, Jacqueline A1 - Sanchez Palencia, Évariste A2 - Sofonea, Mircea - ed. A2 - Viano, Juan M. - ed. PB - Zielona Góra: Uniwersytet Zielonogórski N2 - We consider the limit behaviour of elastic shells when the relative thickness tends to zero. We address the case when the middle surface has principal curvatures of opposite signs and the boundary conditions ensure the geometrical rigidity. N2 - The limit problem is hyperbolic, but enjoys peculiarities which imply singularities of unusual intensity. We study these singularities and their propagation for several cases of loading, giving a somewhat complete description of the solution. L1 - http://www.zbc.uz.zgora.pl/Content/58917/AMCS_2002_12_1_8.pdf L2 - http://www.zbc.uz.zgora.pl/Content/58917 KW - hyperbolic systems KW - propagation of singularities KW - shells T1 - Non-smoothness in the asymptotics of thin shells and propagation of singularities. Hyperbolic case UR - http://www.zbc.uz.zgora.pl/dlibra/docmetadata?id=58917 ER -