HU, HL (reprint author), ACAD SINICA,INST HIGH ENERGY PHYS,POB 9184,BEIJING 100039,PEOPLES R CHINA.
The topological Kazama-Suzuki models are studied, which have been studied previously by Eguchi, Hosono and Yang, and Witten. We point out that these models can be realized as certain gauged bosonic WZNW models, which are proved to possess a hidden fermionic symmetry. The gauged subgroups are left-right asymmetric ones, but still satisfy the anomaly-free condition. We also address the problem concerning the gauged models of non-compact groups.