Analytical and numerical treatment of the Mott–Hubbard insulator in infinite dimensions M. P. Eastwood, F. Gebhard, E. Kalinowski, S. Nishimoto and R. M. Noack Eur. Phys. J. B, 35 2 (2003) 155-175 Published online: 02 October 2003 DOI: 10.1140/epjb/e2003-00266-4