On metric subregularity for set-valued mappings under additive perturbations

In this paper, we derive new sufficient conditions together with the moduli estimation for metric subregularity of sum mappings consisting of a set-valued mapping and a continuous but possibly nonsmooth single-valued additive part. The obtained results address subregularity simultaneously in three d...

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Veröffentlicht in:Applicable analysis Jg. 104; H. 18; S. 3687 - 3716
Hauptverfasser: Ouyang, Wei, Zhang, Binbin, Zhu, Jiangxing
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Abingdon Taylor & Francis 12.12.2025
Taylor & Francis Ltd
Schlagworte:
Banach spaces
coderivative
error bound
Mapping
Metric subregularity/regularity
Perturbation
Stability
subdifferential
ISSN:0003-6811, 1563-504X
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Zusammenfassung:In this paper, we derive new sufficient conditions together with the moduli estimation for metric subregularity of sum mappings consisting of a set-valued mapping and a continuous but possibly nonsmooth single-valued additive part. The obtained results address subregularity simultaneously in three different settings: general Banach spaces, Asplund spaces, and an Asplund pre-image space and a Banach image space with a norm which is Fréchet differentiable at nonzero points. We show that the stability of metric subregularity property under additive small perturbations by a smooth, or Lipschitz continuous, or specific type of nondifferentiable single-valued mapping, respectively, is equivalent. Finally, we establish some conditions for the stability of error bound property and metric regularity as applications.
Bibliographie:ObjectType-Article-1
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content type line 14
ISSN:0003-6811
1563-504X
DOI:10.1080/00036811.2025.2505614