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Blow-up sets of Ricci curvatures of complete conformal metrics

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Veröffentlicht/Copyright: 28. März 2025

Abstract

A version of the singular Yamabe problem in smooth domains in a closed manifold yields complete conformal metrics with negative constant scalar curvatures. In this paper, we study the blow-up phenomena of Ricci curvatures of these metrics on domains whose boundary is close to a certain limit set of a lower dimension. We will characterize the blow-up set according to the Yamabe invariant of the underlying manifold. In particular, we will prove that all points in the lower dimension part of the limit set belong to the blow-up set on manifolds not conformally equivalent to the standard sphere and that all but one point in the lower dimension part of the limit set belong to the blow-up set on manifolds conformally equivalent to the standard sphere. In certain cases, the blow-up set can be the entire manifold. We will demonstrate by examples that these results are optimal.

Award Identifier / Grant number: DMS-2305038

Award Identifier / Grant number: 12371208

Award Identifier / Grant number: 11901405

Award Identifier / Grant number: 12371236

Award Identifier / Grant number: 12001383

Funding statement: The first author acknowledges the support of NSF Grant DMS-2305038. The second author acknowledges the support of NSFC Grant 12371208 and NSFC Grant 11901405. The third author acknowledges the support of NSFC Grant 12371236 and NSFC Grant 12001383.

Acknowledgements

We would like to thank Matthew Gursky, Marcus Khuri, and Yuguang Shi for helpful discussions.

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Received: 2024-01-28
Revised: 2025-01-29
Published Online: 2025-03-28
Published in Print: 2025-06-01

© 2025 Walter de Gruyter GmbH, Berlin/Boston

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