Convexity of reachable sets  of quasilinear systems
    
    
  
  
  
      
      
      
        
Ural mathematical journal, Tome 9 (2023) no. 2, pp. 141-156
    
  
  
  
  
  
    
      
      
        
      
      
      
    Voir la notice de l'article provenant de la source Math-Net.Ru
            
              			This paper investigates convexity of reachable sets for quasilinear systems under integral quadratic constraints. Drawing inspiration from B.T. Polyak's work on small Hilbert ball image under nonlinear mappings, the study extends the analysis to scenarios where a small nonlinearity exists on the system's right-hand side. At zero value of a small parameter, the quasilinear system turns into a linear system and its reachable set is convex.  The investigation reveals that to maintain convexity of reachable sets of these systems, the nonlinear mapping's derivative must be Lipschitz continuous. The proof methodology follows a Polyak's scheme. The paper's structure encompasses problem formulation, exploration of parameter linear mapping and image transformation, application to quasilinear control systems, and concludes with illustrative examples.
			
            
            
            
          
        
      
                  
                    
                    
                    
                        
Keywords: 
Quasilinear control system, small parameter, integral constraints, reachable sets, convexity.
                    
                    
                    
                  
                
                
                @article{UMJ_2023_9_2_a11,
     author = {Ivan O. Osipov},
     title = {Convexity of reachable sets  of quasilinear systems},
     journal = {Ural mathematical journal},
     pages = {141--156},
     publisher = {mathdoc},
     volume = {9},
     number = {2},
     year = {2023},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/UMJ_2023_9_2_a11/}
}
                      
                      
                    Ivan O. Osipov. Convexity of reachable sets of quasilinear systems. Ural mathematical journal, Tome 9 (2023) no. 2, pp. 141-156. http://geodesic.mathdoc.fr/item/UMJ_2023_9_2_a11/