A classification of polyharmonic Maaß forms via quiver representations

Claudia Alfes-Neumann, Igor Burban, Martin Raum

We give a classification of the Harish-Chandra modules generated by the pullback to~$\SL{2}(\RR)$ of \emph{poly}harmonic Maaß forms for congruence subgroups of~$\SL{2}(\ZZ)$ with e…