  We study (Galois) linear complementary dual codes over mixed alphabets
arising from finite chain rings. We give a characterization of when a given
code is of We study (Galois) linear complementary dual codes over mixed
alphabets arising from finite chain rings. We give a characterization of when a
given code is of this type and when it is Galois invariant. Finally, this leads
to a study of the Gray image of $\mathbb{F}_p\mathbb{F}_p[\theta]$-linear
codes, where $p\in\{2; 3\}$ and $\theta\neq\theta^2=0$, that provides
$\mathbb{F}_p$-linear complementary dual codes.
