Let Ω■Rnbe a Gromov hyperbolic domain which satisfies a quasihyperbolic boundary condition.In this paper we prove that there is a bi-Holder identification between the internal boundary of Ω and the Gromov boundary endowed with a visual metric by using a diame...MORE Let Ω■Rnbe a Gromov hyperbolic domain which satisfies a quasihyperbolic boundary condition.In this paper we prove that there is a bi-Holder identification between the internal boundary of Ω and the Gromov boundary endowed with a visual metric by using a diameter type Gehring-H...