1. College of Mathematics, Sichuan University, Chengdu 610064, P. R. China;2. Department of Mathematics, Xinjiang University, Ürümqi 830046, P. R. China
Abstract:
The absolute stability of a class of indirect control systems was studied by applying the theory of Hermitian quadratic form and Jordan normal form. The algebraic formal criteria for the absolute stability are established, and these results are new and useful.