Decay Structures for the Equations of Porous Elasticity in One-Dimensional Whole Space

摘要

This paper investigates the solutions of the porous-elastic materials with dissipation in the case of the whole real line. We consider three different cases. First we consider the case when there are dissipation mechanisms at the elastic structure and the porous structure and we prove the decay structure is standard type. Second we consider the cases when the dissipation is only on the elastic structure or on the porous structure. In these cases we show that the decay structure is regularity-loss type. Furthermore, we will show the optimality for the decay estimates for all cases.