On the symbol pair distance of some classes of repeated root constacyclic codes over Galois ring.

Negacyclic codes of length 8p^s over F_p^m + uF_p^m and their duals.

On constacyclic codes of length 8p^s over F_p^m + uF_p^m.

Symbol pair distance of 3p^s length over finite fields.

DNA cyclic codes over Z₄ + uZ₄ + u²Z₄, u³ = 0.

On Triple symbol distance of prime power length over finite fields.