A complete characterization of Galois subfields of the generalized   Giulietti--Korchm\'aros function field
  We give a complete characterization of all Galois subfields of the generalized Giulietti--Korchm\'aros function fields $\mathcal C_n / \fqn$ for $n\ge 5$. Calculating the genera of the corresponding fixed fields, we find new additions to the list of known genera of maximal function fields. 
Nurdag\"ul Anbar, Alp Bassa, Peter Beelen
math.NT