This paper investigates the absolute stability on ℊs of the zero solution of
Lurie-Postnikov systems with impulses and structural perturbation. A
number of absolutely stable on ℊs theorems of the Lyapunov type for
Lurie-Postnikov systems are proved, extending and generalizing previous
work on the subject. These results are applied to some fourth-order Lurie-Postnikov type systems decomposed into two systems.