Using boundaries to find smooth norms
    
    
  
  
  
      
      
      
        
Studia Mathematica, Tome 224 (2014) no. 2, pp. 169-181
    
  
  
  
  
  
    
      
      
        
      
      
      
    Voir la notice de l'article provenant de la source Institute of Mathematics Polish Academy of Sciences
            
              The aim of this paper is to present a tool used to show that certain Banach spaces can be endowed with $C^k$ smooth equivalent norms. The hypothesis uses particular countable decompositions of certain subsets of $B_{X^*}$, namely boundaries. Of interest is that the main result unifies two quite well known results. In the final section, some new corollaries are given.
            
            
            
          
        
      
                  
                    
                    
                    
                        
Keywords: 
paper present tool certain banach spaces endowed smooth equivalent norms hypothesis uses particular countable decompositions certain subsets * namely boundaries interest main result unifies quite known results final section corollaries given
                    
                    
                    
                  
                
                
                
                
                
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              Victor Bible 1
@article{10_4064_sm224_2_5,
     author = {Victor Bible},
     title = {Using boundaries to find smooth norms},
     journal = {Studia Mathematica},
     pages = {169--181},
     publisher = {mathdoc},
     volume = {224},
     number = {2},
     year = {2014},
     doi = {10.4064/sm224-2-5},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm224-2-5/}
}
                      
                      
                    Victor Bible. Using boundaries to find smooth norms. Studia Mathematica, Tome 224 (2014) no. 2, pp. 169-181. doi: 10.4064/sm224-2-5
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