Complete classification of
$$(\delta +\alpha u^2)$$
(
δ
+
α
u
2
)
-constacyclic codes over
$${\mathbb {F}}_{3^m}[u]/\langle u^4\rangle $$
F
3
m
[
u
]
/
⟨
u
4
⟩
of length 3n
2017 ◽
Vol 29
(1)
◽
pp. 13-39
◽
2017 ◽
Vol 340
(12)
◽
pp. 2840-2852
◽
2015 ◽
Vol 34
◽
pp. 123-138
◽
2017 ◽
Vol 16
(10)
◽
pp. 1750197
◽
2016 ◽
Vol 31
(17)
◽
pp. 1650102
◽
2003 ◽
Vol 35
(6)
◽
pp. 1059-1076
◽
Keyword(s):