prehomogeneous

pre- +‎ homogeneous

prehomogeneous (not comparable)

1. (mathematics) Having an automorphism group with an open orbit.
   • 2015, Wen-Wei Li, “Zeta integrals, Schwartz spaces and local functional equations”, in arXiv‎:

     To justify this viewpoint, we prove the convergence of ${\displaystyle p}$-adic local zeta integrals under certain premises, work out the case of prehomogeneous vector spaces and re-derive a large portion of Godement-Jacquet theory.