Abstract
This paper sheds new light on regularity of multifunctions through various characterizations of directional Hölder/Lipschitz metric regularity, which are based on the concepts of slope and coderivative. By using these characterizations, we show that directional Hölder/Lipschitz metric regularity is stable, when the multifunction under consideration is perturbed suitably. Applications of directional Hölder/Lipschitz metric regularity to investigate the stability and the sensitivity analysis of parameterized optimization problems are also discussed.
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Many thanks to the referees for their helpful comments and suggestions which have led to an improved paper.
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Research partially supported by Ministerio de Economıa y Competitividad under Grant MTM2011-29064-C03(03), by LIA “FormathVietnam” and by NAFOSTED.
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Van Ngai, H., Tron, N.H. & Théra, M. Directional Hölder Metric Regularity. J Optim Theory Appl 171, 785–819 (2016). https://doi.org/10.1007/s10957-015-0797-6
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DOI: https://doi.org/10.1007/s10957-015-0797-6
Keywords
- Slope
- Metric regularity
- Hölder metric regularity
- Generalized equation
- Fréchet subdifferential
- Asplund spaces
- Ekeland variational principle
- Hadamard directional differentiability