Vector valued hermitian and quaternionic modular forms
  Extending the method of the paper [FS3] we prove three structure theorems for vector valued modular forms, where two correspond to 4-dimensional cases (two hermitian modular groups, one belonging to the field of Eisenstein numbers, the other to the field of Gaussian numbers.) and one to a 6-dimensional case (a quaternionic modular group). 
Eberhard Freitag, Riccardo Salvati Manni
math.NT math.AG