Lakhdar HeboubDouadi Mihoubi2024-02-142024-02-142022http://dspace.univ-msila.dz:8080//xmlui/handle/123456789/42322In this paper, we compute the maximal and minimal codes of length 2p over finite fields q  with p and q are distinct odd primes and f( )= 1 p p − is the multiplicative order of q modulo 2p. We show that, every cyclic code is a direct sum of minimal cyclic codesLinear and cyclic codes, Cyclotomic classes, Decomposition of ideals in semi-simple algebras.Article