  In this paper characters of the normaliser of d-split Levi subgroups in
Sp2n(q) are parametrised with a particular focus on the Clifford theory between
the Levi subgroup and its normaliser. This forms a key step in verifying the
inductive Alperin-McKay condition from Sp\"ath via a criterion given by Sp\"ath
and the author.

Representation Theory