次接触过程

Quasi--Contact Process

提出一类新的粒子系统——次接触过程。它是近邻粒子系统,并以接触过程为自己的特例。讨论了它的一些性质和临界现象,指出它既不吸引也不可逆,并且求得该过程存活时,其参数的范围。这一结果是接触过程相应结论的推广。

We introduce a new particle system-Quasi-contact process. It is a finite near- est partical system. The contact process is its special case. We discuss its simple properties and critical phenomena. It is not only nonattractive, but also non-re- versible. The survival of this system is discussed.