In a chance constrained program (CCP), decision makers seek the best whose probability of violating uncertainty constraints is within prespecified risk level. As CCP often nonconvex and difficult to solve optimality, much effort has been devoted developing convex inner approximations for CCP, among which conditional value-at-risk ([Formula: see text]) known be more than decade. This paper studi...

In this paper we investigate the behavior of solutions, stable and unstable of the solutions a second-order rational difference equation. Also we will discuss about the behavior of solutions a the rational system, we show these solutions may be stable or unstable.