In this paper we generalize coding theory of cyclic codes over finite fields to skew polynomial rings over finite rings. Codes that are principal ideals in quotient rings of skew polynomial rings by two sided ideals are studied. Next we consider skew codes of endomorphism type and derivation type. And we give some examples.

As an accessory, the ring was considered a significant type of jewelry in Medieval Europe. Apart from its tangible existence as material, has been used various poems, songs, paintings, engravings, and narratives with specific symbolic iconographic connotations. It is known that rings had religious social functions period body narratives, stories motif three rings were told Western literatu...