POLYMERS ON ANISOTROPIC LATTICES

The study of the thermodynamic behavior of polymers on anisotropic Bet he lattices shows a phase diagram for the four-coordinated lattice whi ch is different from the ones for lattices with larger coordination nu mber. Two distinct polymerized phases appear, one of them having the d ensity of sites incorporated into chains equal to one. The solution of the model on the anisotropic q=4 Husimi lattice leads to similar resu lts. Finally, preliminary phenomenological renormalization group calcu lations, using the solution of the model on strips of finite widths vi a transfer matrix calculations, are consistent with a similar phase di agram for the model on the square lattice.