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| Main Author: | |
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| Format: | Preprint |
| Published: |
2026
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2603.14929 |
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Table of Contents:
- Given a noncollapsing sequence of m-dimensional compact Einstein manifolds with a uniform energy bound, the Gromov-Hausdorff limit is a compact Einstein orbifold with at most finitely many singularities. Conversely, starting with a compact Einstein orbifold, we are interested in whether there exists a sequence of smooth Einstein metrics converging to it. In this paper, we provide a negative answer. We give an explicit obstruction for a negative Einstein orbifold appearing as a noncollapsing limit of compact Einstein manifolds, which does not vanish for hyperbolic orbifolds. This work extends the work of Ozuch in dimension 4, with significant technical simplifications.