ADVANCES IN MATHEMATICS OF COMMUNICATIONS, cilt.14, sa.1, ss.53-67, 2020 (SCI-Expanded)
We introduce skew constacyclic codes over the local Frobenius non-chain rings of order 16 by defining non-trivial automorphisms on these rings. We study the Gray images of these codes, obtaining a number of binary and quaternary codes with good parameters as images of skew cyclic codes over some of these rings.