  The Boltzmann equation describes the detailed microscopic behaviour of a
dilute gas, and represents the basis of the kinetic theory of gases. In order
to reduce the difficulties in solving the Boltzmann equation, simple
expressions of a collision operator have been proposed to replace the true
Boltzmann integral term. These new equations are called kinetic models. The
most popular and widely used kinetic model is the Bhatnagar-Gross-Krook (BGK)
model. In this work we propose and analyse a BGK model for charge transport in
graphene.
