Symmetry and Perturbation Theory : proceedings of the international conference SPT 2001, Cala Gonone, Sardinia, Italy, 6-13 May 2001

The third conference on "Symmetry and Perturbation Theory" (SPT2001) was attended by over 50 mathematicians, physicists and chemists. The proceedings present the advancement of research in this field — more precisely, in the different fields at whose crossroads symmetry and perturbation theory sit.