Title : 
A note invalidating some recent stability conjectures
         
        
            Author : 
Tiwari, R.N. ; Singh, Vimal
         
        
            Author_Institution : 
Motilal Nehru Regional Engineering College, Allahabad, India
         
        
        
        
        
            fDate : 
5/1/1979 12:00:00 AM
         
        
        
        
            Abstract : 
Some recent stability conjectures for second- and third-order nonlinear systems [1], [2] are shown to be incorrectly analyzed, and thus the assertions obtained are misleading and false in general.
         
        
            Keywords : 
Algebra; Differential equations; Lyapunov method; Multidimensional systems; Nonlinear equations; Nonlinear systems; Polynomials; Speech; Stability analysis; Stability criteria;
         
        
        
            Journal_Title : 
Proceedings of the IEEE
         
        
        
        
        
            DOI : 
10.1109/PROC.1979.11338