In the application of Lyapunov\´s second method to linear systems it is shown that a direct synthesis of the matrix from the system equations (in the expression ) is possible. Application to the general third-order linear system is made and the results are seen to be identical to the Routh-Hurwitz criteria.
Keywords :
Lyapunov matrix equations; Differential equations; Linear matrix inequalities; Linear systems; Lyapunov method; Neodymium; Symmetric matrices; Transforms; Vectors; Writing;