（1992年）

1. T. Xiang, N. d'Ambrumenil, Theorem on the one dimensional interacting electron system on a lattice, Physical Review B 46 (1992) 11179-11181.

2. T. Xiang, N. d'Ambrumenil, Energy level ordering in the one dimensional t-J model: A rigorous result, Physical Review B 46 (1992) 599-602 (Rapid Communications).

3. Y. M. Li, T. Xiang, N. d'Ambrumenil, Analytic calculation of ground-state properties of the one-dimensional t-J model with a modified Gutzwiller wave function, Physical Review B 45 (1992) 13068-13071.

4. T. Xiang, N. d'Ambrumenil, Charge-spin separation and the ground-state wave function of the one-dimensional t-J model, Physical Review B 45 (1992) 8150-8153.

5. T. Xiang, G. A. Gehring, Real space renormalization group study of Heisenberg spin chain, Journal of Magnetism and Magnetic Materials 104-107 (1992) 861-862.