cocenter

co- +‎ center

cocenter (plural cocenters)

1. (mathematics) The cokernel of a homomorphism.
   • 2016, Xuhua He, Sian Nie, “Cocenters and representations of pro-${\displaystyle p}$ Hecke algebras”, in arXiv‎:

     As a consequence, we obtain a new criterion on the supersingular representation: a (virtual) representation is supersingular if and only if its character vanishes on the non-supersingular part of the cocenter..

• concrete