Reconstructive Phase Transitions: In Crystals And QuasicrystalsThis book deals with the phenomenological theory of first order structural phase transitions, with a special emphasis on reconstructive transformations in which a group subgroup relationship between the symmetries of the phases is absent. It starts with a unified presentation of the current approach to first order phase transitions, using the more recent results of the Landau theory of phase transitions and of the theory of singularities. A general