Abstract
Representation formulas for faces and support functions of the values of maximal monotone operators are established in two cases: either the operators are defined on reflexive and locally uniformly convex real Banach spaces with locally uniformly convex duals, or their domains have nonempty interiors on real Banach spaces. Faces and support functions are characterized by the limit values of the minimal-norm selections of maximal monotone operators in the first case while in the second case they are represented by the limit values of any selection of maximal monotone operators. These obtained formulas are applied to study the structure of maximal monotone operators: the local unique determination from their minimal-norm selections, the local and global decompositions, and the unique determination on dense subsets of their domains.
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Acknowledgements
The authors are grateful to the editors and two anonymous referees for constructive comments and suggestions, which greatly improved the paper. Pham Duy Khanh was supported, in part, by the Fondecyt Postdoc Project 3180080, the Basal Program CMM–AFB 170001 from CONICYT–Chile, and the National Foundation for Science and Technology Development (NAFOSTED) under grant number 101.01-2017.325.
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Communicated by Constantin Zălinescu.
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Nguyen, B.T., Khanh, P.D. Faces and Support Functions for the Values of Maximal Monotone Operators. J Optim Theory Appl 186, 843–863 (2020). https://doi.org/10.1007/s10957-020-01737-3
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DOI: https://doi.org/10.1007/s10957-020-01737-3
Keywords
- Maximal monotone operator
- Face
- Support function
- Minimal-norm selection
- Yosida approximation
- Strong convergence
- Weak convergence