Title : 
The rank and kernel of extended 1-perfect Z4-linear and additive non-Z4-linear codes
         
        
            Author : 
Borges, Joaquim ; Phelps, Kevin T. ; Rifà, Josep
         
        
            Author_Institution : 
Comput. Sci. Dept., Univ. Autonoma de Barcelona, Bellaterra, Spain
         
        
        
        
        
        
        
            Abstract : 
A binary extended 1-perfect code of length n + 1 = 2t is additive if it is a subgroup of Z2α × Z4β. The punctured code by deleting a Z2 coordinate (if there is one) gives a perfect additive code. 1-perfect additive codes were completely characterized and by using that characterization we compute the possible parameters α, β, rank, and dimension of the kernel for extended 1-perfect additive codes. A very special case is that of extended 1-perfect Z4-linear codes.
         
        
            Keywords : 
binary codes; linear codes; 1-perfect additive codes; additive non-
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4-linear codes; binary extended 1-perfect code; dimension; extended 1-perfect 
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4-linear code; kernel; punctured code; rank; subgroup; Additives; Arithmetic; Binary codes; Combinatorial mathematics; Computer science; Hamming distance; Kernel; Linear code; Propulsion;
 
        
        
            Journal_Title : 
Information Theory, IEEE Transactions on
         
        
        
        
        
            DOI : 
10.1109/TIT.2003.814490