Abstract
This paper studies the interplay between the concepts of error bounds and the Kurdyka–Łojasiewicz (KL) inequality on Hadamard manifolds. To this end, we extend some properties and existence results of a solution for differential inclusions on Hadamard manifolds. As a second contribution, we show how the KL inequality can be used to obtain the convergence of the gradient method for solving convex feasibility problems on Hadamard manifolds. The convergence results of the alternating projection method are also established for cyclic and random projections on Hadamard manifolds and, more generally, CAT(0) spaces.
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Acknowledgements
The authors wish to express their gratitude to the associate editor and referees for their valuable comments and advice. The authors were partially supported by the National Council for Scientific and Technological Development of Brazil - CNPq (Grants 302156/2022-4 and 315937/2023-8).
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Communicated by Nicolas Hadjisavvas.
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da Cruz Neto, J.X., Melo, Í.D.L., Sousa, P.A. et al. On the Relationship Between the Kurdyka–Łojasiewicz Property and Error Bounds on Hadamard Manifolds. J Optim Theory Appl 200, 1255–1285 (2024). https://doi.org/10.1007/s10957-024-02386-6
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DOI: https://doi.org/10.1007/s10957-024-02386-6
Keywords
- Differential inclusion
- Kurdyka–Łojasiewicz inequality
- Error bounds
- Convex feasibility problem
- Hadamard manifolds
- CAT(0) spaces