This paper concerns generalized differential characterizations of maximal monotone set-valued mappings. Using advanced tools of variational analysis, we establish coderivative criteria for maximal monotonicity of set-valued mappings, which seem to be the first infinitesimal characterizations of maximal monotonicity outside the single-valued case. We also present second-order necessary and sufficient conditions for lower-C2\mathcal{C}^2 functions to be convex and strongly convex. Examples are provided to illustrate the obtained results and the imposed assumptions.

Contact details are reproduced from the original publication and may be historical.

Gue Myung Lee

Dept. of Applied Mathematics, Pukyong National University, Busan 608-737, Republic of Korea

gmlee@pknu.ac.kr

Boris S. Mordukhovich

Dept. of Mathematics, Wayne State University, Detroit, MI 48202, U.S.A.

boris@math.wayne.edu

Tran T. A. Nghia

Dept. of Mathematics and Statistics, Oakland University, Rochester, MI 48309, U.S.A.

nttran@oakland.edu
  1. D. Aussel, A. Daniilidis, L. Thibault: Subsmooth sets: Functional characterizations and related concepts, Trans. Amer. Math. Soc. 357 (2004) 1275–1302.https://doi.org/10.1090/S0002-9947-04-03718-3Google Scholar
  2. H. H. Bauschke, P. L. Combettes: Convex Analysis and Monotone Operator Theory in Hilbert Spaces, Springer, New York (2011).https://doi.org/10.1007/978-1-4419-9467-7Google Scholar
  3. J. F. Bonnans, A. Shapiro: Perturbation Analysis of Optimization Problems, Springer, New York (2000).https://doi.org/10.1007/978-1-4612-1394-9Google Scholar
  4. J. M. Borwein, Q. J. Zhu: Techniques of Variational Analysis, Springer, New York (2005).Google Scholar
  5. H. Brézis: Opérateurs Maximaux Monotones et Semi-Groupes de Contractions dans les Espaces de Hilbert, North-Holland, Amsterdam (1973).Google Scholar
  6. R. Burachik, A. Iusem: Set-Valued Mappings and Enlargements of Monotone Operators, Springer, New York (2008).Google Scholar
  7. N. H. Chieu, T. D. Chuong, J.-C. Yao, N. D. Yen: Characterizing convexity of a function by its Fréchet and limiting second-order subdifferentials, Set-Valued Var. Anal. 19 (2011) 75–96.https://doi.org/10.1007/s11228-010-0136-xGoogle Scholar
  8. N. H. Chieu, N. Q. Huy: Second-order subdifferentials and convexity of real-valued functions, Nonlinear Anal. 74 (2011) 154–160.https://doi.org/10.1016/j.na.2010.08.029Google Scholar
  9. N. H. Chieu, N. T. Q. Trang: Coderivative and monotonicity of continuous mappings, Taiwanese J. Math. 16 (2012) 353–365.https://doi.org/10.11650/twjm/1500406545Google Scholar
  10. N. H. Chieu, J.-C. Yao: Characterization of convexity for a piecewise C 2 function by the limiting second-order subdifferential, Taiwanese J. Math. 15 (2011) 31–42.https://doi.org/10.11650/twjm/1500406159Google Scholar
  11. N. H. Chieu, J.-C. Yao, N. D. Yen: Convexity of sets and functions via second-order subdifferentials, preprint (2014).Google Scholar
  12. G. Colombo, L. Thibault: Prox-regular sets and applications, in: Handbook of Nonconvex Analysis, D. Y. Gao, D. Motreanu (eds.), International Press, Somerville (2010) 99–182.Google Scholar
  13. R. Correa, A. Jofré, L. Thibault: Subdifferential monotonicity as characterization of convex functions, Numer. Funct. Anal. Optim. 15 (1994) 1167–1183.https://doi.org/10.1080/01630569408816579Google Scholar
  14. A. Daniilidis, J. Malick: Filling the gap between lower-C 1 and lower-C 2 functions, J. Convex Analysis 12 (2005) 315–329.https://doi.org/10.68381/jca12022Google Scholar
  15. D. Drusvyatskiy, A. S. Lewis: Tilt stability, uniform quadratic growth, and strong metric regularity of the subdifferential, SIAM J. Optim. 23 (2013) 256–267.https://doi.org/10.1137/120876551Google Scholar
  16. D. Drusvyatskiy, B. S. Mordukhovich, T. T. A. Nghia: Second-order growth, tilt stability, and metric regularity of the subdifferential, J. Convex Analysis 21 (2014) 1165–1192.https://doi.org/10.68381/jca21061Google Scholar
  17. A. C. Eberhard, R. Wenczel: A study of tilt-stable optimality and sufficient conditions, Nonlinear Anal. 75 (2011) 1260–1281.https://doi.org/10.1016/j.na.2011.08.014Google Scholar
  18. K. Emich, R. Henrion: A simple formula for the second-order subdifferential of maximum functions, Vietnam J. Math. 42 (2014) 467–478.https://doi.org/10.1007/s10013-013-0052-0Google Scholar
  19. F. Facchinei, J.-S. Pang: Finite-Dimensional Variational Inequalities and Complementarity Problems, Vols. I, II, Springer, New York (2003).https://doi.org/10.1007/b97544Google Scholar
  20. D. T. Luc, S. Schaible: Generalized monotone nonsmooth maps, J. Convex Analysis 3 (1996) 195–205.https://doi.org/10.68381/jca03013Google Scholar
  21. V. Jeyakumar, D. T. Luc, S. Schaible: Characterizations of generalized monotone nonsmooth continuous maps using approximate Jacobians, J. Convex Analysis 5 (1998) 119–132.https://doi.org/10.68381/jca05-9Google Scholar
  22. H. Jiang, L. Qi: Local uniqueness and convergence of iterative methods for nonsmooth variational inequalities, J. Math. Anal. Appl. 196 (1995) 314–331.https://doi.org/10.1006/jmaa.1995.1412Google Scholar
  23. G. J. Minty: Monotone (nonlinear) operators in Hilbert space, Duke Math. J. 29 (1962) 341–346.https://doi.org/10.1215/S0012-7094-62-02933-2Google Scholar
  24. B. S. Mordukhovich: Sensitivity analysis in nonsmooth optimization, in: Theoretical Aspects of Industrial Design (Ohio, 1990), D. A. Field, V. Komkov (eds.), SIAM, Philadelphia (1992) 32–46.Google Scholar
  25. B. S. Mordukhovich: Variational Analysis and Generalized Differentiation, I: Basic Theory, II: Applications, Springer, Berlin (2006).https://doi.org/10.1007/3-540-31246-3Google Scholar
  26. B. S. Mordukhovich, T. T. A. Nghia: Second-order variational analysis and characterizations of tilt-stable optimal solutions in infinite-dimensional spaces, Nonlinear Anal. 86 (2013) 159–180.https://doi.org/10.1016/j.na.2013.03.014Google Scholar
  27. B. S. Mordukhovich, T. T. A. Nghia: Second-order characterizations of tilt stability with applications to nonlinear programming, Math. Program., Ser. B 149 (2015) 83–104.https://doi.org/10.1007/s10107-013-0739-8Google Scholar
  28. B. S. Mordukhovich, T. T. A. Nghia: Local monotonicity and full stability for parametric variational systems, SIAM J. Optim. 26 (2016) 1032–1059.https://doi.org/10.1137/15M1036890Google Scholar
  29. B. S. Mordukhovich, R. T. Rockafellar: Second-order subdifferential calculus with applications to tilt stability in optimization, SIAM J. Optim. 22 (2012) 953–986.https://doi.org/10.1137/110852528Google Scholar
  30. J. J. Moreau: Rafle par un convexe variable I, Trav. Semin. d’Anal. Convexe, Montpellier 1, Exposé 15 (1971) 1–43.Google Scholar
  31. T. Pennanen: Local convergence of the proximal point algorithm and multiplier methods without monotonicity, Math. Oper. Res. 27 (2002) 170–191.https://doi.org/10.1287/moor.27.1.170.331Google Scholar
  32. R. R. Phelps: Convex Functions, Monotone Operators and Differentiability, 2nd Ed., Springer, Berlin (1993).Google Scholar
  33. R. A. Poliquin, R. T. Rockafellar: Tilt stability of a local minimum, SIAM J. Optim. 8 (1998) 287–299.https://doi.org/10.1137/S1052623496309296Google Scholar
  34. S. M. Robinson: Generalized equations and their solutions, I: Basic theory, Math. Program. Study 10 (1979) 128–141.https://doi.org/10.1007/BFb0120850Google Scholar
  35. R. T. Rockafellar: On the maximality of sums of nonlinear monotone operators, Trans. Amer. Math. Soc. 149 (1970) 75–88.https://doi.org/10.1090/S0002-9947-1970-0282272-5Google Scholar
  36. R. T. Rockafellar: Monotone operators and the proximal point algorithm, SIAM J. Control Optim. 14 (1976) 877–898.https://doi.org/10.1137/0314056Google Scholar
  37. R. T. Rockafellar: Favorable classes of Lipschitz continuous functions in subgradient optimization, in: Progress in Nondifferentiable Optimization, E. A. Nurminskii (ed.), IIASA, Laxenburg (1982) 125–143.Google Scholar
  38. R. T. Rockafellar, R. J.-B. Wets: Variational Analysis, Springer, Berlin (1998).https://doi.org/10.1007/978-3-642-02431-3Google Scholar
  39. S. Simons: Minimax and Monotonicity, Springer, Berlin (1998).https://doi.org/10.1007/BFb0093633Google Scholar

N. H. Chieu, G. M. Lee, B. S. Mordukhovich, T. T. A. Nghia. “Coderivative Characterizations of Maximal Monotonicity for Set-Valued Mappings.” Journal of Convex Analysis 23 (2016), No. 2, 461–480. https://doi.org/10.68381/jca23017