Title : 
Some controllability questions of linear and nonlinear neutral functional differential equations in W2(1)
         
        
        
            Author_Institution : 
Dept. of Math., North Carolina State Univ., Raleigh, NC, USA
         
        
        
        
            Abstract : 
Sharp, easy to test conditions for exact controllability of nonlinear systems of neutral type in the state space W2 (1) are formulated. W2(1) is the Sobolev space of absolutely continuous functions x whose time derivatives are square integrable on the interval [-h,0]. Also explored are conditions which guarantee that a null-controllable system is also exactly controllable. Criteria for null controllability of linear systems are given
         
        
            Keywords : 
controllability; differential equations; functional equations; nonlinear systems; state-space methods; Sobolev space; absolutely continuous functions; exact controllability; neutral functional differential equations; nonlinear systems; null controllability criteria; null-controllable system; square integrable time derivatives; state space W2(1); Control systems; Controllability; Differential equations; Ear; Hilbert space; Linear systems; Mathematics; Nonlinear systems; State-space methods; System testing;
         
        
        
        
            Conference_Titel : 
Decision and Control, 1989., Proceedings of the 28th IEEE Conference on
         
        
            Conference_Location : 
Tampa, FL
         
        
        
            DOI : 
10.1109/CDC.1989.70387