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| Main Author: | |
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| Format: | Preprint |
| Published: |
1995
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/hep-th/9512201 |
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Table of Contents:
- Several examples of similarity transformations connecting two string theories with different backgrounds are reviewed. We also discuss general structure behind the similarity transformations from the point of view of the topological conformal algebra and of the non-linear realization of gauge symmetry.