With the abounding of chaotic phenomena in the nature, the study of it is not only one of the most active branches in dynamical systems, but also one of the main research areas in nonlinear systems.

• 鉴于混沌现象在自然界中大量存在，混沌现象的研究不仅是现代动力系统学科最活跃的分支之一，也是当今非线性科学领域的主要课题之一。