In this paper,we consider a singular perturbation elliptic-parabolic partial differentialequation for periodic boundary value problem,and construct a difference
The global structure of the mapping T<sub>n</sub>:x→[x<sup>2</sup>]<sub>n</sub>,is studied.The symmetricunconnected substructures of T<sub>2</sub> is coinciden
Based on a general assumption for plastic potential and yield surface,some propertiesof the nonassociated plasticity are studied,and the existence and uniquenes