共 50 条
- [31] SPHALERON TRANSITION OF REDUCED O(3) NONLINEAR SIGMA-MODEL PROGRESS OF THEORETICAL PHYSICS, 1990, 84 (06): : 1196 - 1211
- [32] REMOVABILITY OF THE TOPOLOGICAL TERM IN THE O(3) NONLINEAR SIGMA-MODEL ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1991, 51 (01): : 133 - 136
- [34] Iterating block spin transformations of the O(3) nonlinear sigma model PHYSICAL REVIEW D, 1996, 54 (02): : 1736 - 1747
- [40] Quantum mechanically induced Hopf term in the O(3) nonlinear sigma model Nuclear Physics, Section B, 514 (03):