  In rotationally symmetric domains, the Boltzmann equation with specular
reflection boundary condition has a special type of equilibrium states called
the rotational local Maxwellian which, unlike the uniform Maxwellian, has an
additional term related to the angular momentum of the gas. In this paper, we
consider the initial boundary value problem of the Boltzmann equation near the
rotational local Maxwellian. Based on the L2-L1 framework of [12], we establish
the global well-posedness and the convergence toward such equilibrium states.
