Abstract
In this paper, we consider the structure of maximally monotone operators in Banach space whose domains have nonempty interior and we present new and explicit structure formulas for such operators. Along the way, we provide new proofs of norm-to-weak∗ closedness and of property (Q) for these operators (as recently proven by Voisei). Various applications and limiting examples are given.
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Borwein, J.M.: Maximal monotonicity via convex analysis. J. Convex Anal. 13, 561–586 (2006)
Borwein, J.M.: Maximality of sums of two maximal monotone operators in general Banach space. Proc. Am. Math. Soc. 135, 3917–3924 (2007)
Borwein, J.M.: Fifty years of maximal monotonicity. Optim. Lett. 4, 473–490 (2010)
Bauschke, H.H., Combettes, P.L.: Convex Analysis and Monotone Operator Theory in Hilbert Spaces. Springer, Berlin (2011)
Borwein, J.M., Vanderwerff, J.D.: Convex Functions. Cambridge University Press, Cambridge (2010)
Burachik, R.S., Iusem, A.N.: Set-Valued Mappings and Enlargements of Monotone Operators. Springer, Berlin (2008)
Phelps, R.R.: Convex Functions, Monotone Operators and Differentiability, 2nd edn. Springer, Berlin (1993)
Rockafellar, R.T.: Convex Analysis. Princeton University Press, Princeton (1970)
Rockafellar, R.T., Wets, R.J.-B.: Variational Analysis, 3rd edn. Springer, Berlin (2009)
Simons, S.: Minimax and Monotonicity. Springer, Berlin (1998)
Simons, S.: From Hahn–Banach to Monotonicity. Springer, Berlin (2008)
Zălinescu, C.: Convex Analysis in General Vector Spaces. World Scientific, Singapore (2002)
Zeidler, E.: Nonlinear Functional Analysis and Its Applications, II/A: Linear Monotone Operators. Springer, New York (1990)
Zeidler, E.: Nonlinear Functional Analysis and Its Application, II/B: Nonlinear Monotone Operators. Springer, New York (1990)
Voisei, M.D.: Characterizations and continuity properties for maximal monotone operators with non-empty domain interior. J. Math. Anal. Appl. 391, 119–138 (2012)
Borwein, J.M., Strojwas, H.M.: Directionally Lipschitzian mappings on Baire spaces. Can. J. Math. 36, 95–130 (1984)
Borwein, J.M., Strojwas, H.M.: The hypertangent cone. Nonlinear Anal. 13, 125–139 (1989)
Hou, S.H.: On property (Q) and other semicontinuity properties of multifunctions. Pac. J. Math. 103, 39–56 (1982)
Megginson, R.E.: An Introduction to Banach Space Theory. Springer, Berlin (1998)
Rudin, R.: Functional Analysis, 2nd edn. McGraw-Hill, New York (1991)
Rockafellar, R.T.: On the maximal monotonicity of sums on nonlinear monotone operators. Trans. Am. Math. Soc. 149, 75–88 (1970)
Rockafellar, R.T.: Local boundedness of nonlinear, monotone operators. Mich. Math. J. 16, 397–407 (1969)
Borwein, J.M., Fitzpatrick, S., Girgensohn, R.: Subdifferentials whose graphs are not norm × weak∗ closed. Can. Math. Bull. 4, 538–545 (2003)
Aubin, J.-P., Ekeland, I.: Applied Nonlinear Analysis. Wiley, New York (1984)
Yao, L.: The sum of a maximal monotone operator of type (FPV) and a maximal monotone operator with full domain is maximally monotone. Nonlinear Anal. 74, 6144–6152 (2011)
Borwein, J.M.: Asplund decompositions of monotone operator. In: Pietrus, A., Geoffroy, M.H. (eds.) Proc. Control, Set-Valued Analysis and Applications. ESAIM: Proceedings, vol. 17, pp. 19–25 (2007)
Bauschke, H.H., Borwein, J.M., Combettes, P.L.: Essential smoothness, essential strict convexity, and Legendre functions in Banach spaces. Commun. Contemp. Math. 3, 615–647 (2001)
Borwein, J.M., Fitzpatrick, S., Kenderov, P.: Minimal convex uscos and monotone. Can. J. Math. 43, 461–476 (1991)
Borwein, J.M., Zhu, Q.: Multifunctional and functional analytic methods in nonsmooth analysis. In: Clarke, F.H., Stern, R.J. (eds.) Nonlinear Analysis, Differential Equations and Control, NATO Advanced Study Institute, Montreal. NATO Science Series C, vol. 528, pp. 61–157. Kluwer Academic, Dordrecht (1999)
Preiss, D., Phelps, R.R., Namioka, I.: Smooth Banach spaces, weak Asplund spaces and monotone or usco mappings. Isr. J. Math. 72, 257–279 (1990)
Auslender, A.: Convergence of stationary sequences for variational inequalities with maximal monotone. Appl. Math. Optim. 28, 161–172 (1993)
Yao, L.: The sum of a maximally monotone linear relation and the subdifferential of a proper lower semicontinuous convex function is maximally monotone. Set-Valued Var. Anal. 20, 155–167 (2012)
Diestel, J.: Sequences and Series in Banach Spaces. Springer, New York (1984)
Georgiev, P.Gr.: Porosity and differentiability in smooth Banach spaces. Proc. Am. Math. Soc. 133, 1621–1628 (2005)
Veselý, L.: On the multiplicity points of monotone operators of separable Banach space. Comment. Math. Univ. Carol. 27, 551–570 (1986)
Veselý, L.: On the multiplicity points of monotone operators on separable Banach spaces II. Comment. Math. Univ. Carol. 2(8), 295–299 (1987)
Cheng, L., Zhang, W.: A note on non-support points, negligible sets, Gâteaux differentiability and Lipschitz embeddings. J. Math. Anal. Appl. 350, 531–536 (2009)
Jofré, A., Thibault, L.: D-representation of subdiferentials of directionally Lipschitz functions. Proc. Am. Math. Soc. 110, 117–123 (1990)
Thibault, L., Zagrodny, D.: Integration of subdiferentials of lower semicontinuous functions on Banach spaces. J. Math. Anal. Appl. 189, 33–58 (1995)
Löhne, A.: A characterization of maximal monotone operators. Set-Valued Anal. 16, 693–700 (2008)
Veselý, L.: A parametric smooth variational principle and support properties of convex sets and functions. J. Math. Anal. Appl. 350, 550–561 (2009)
Rockafellar, R.T.: On the maximal monotonicity of sums on nonlinear monotone operators. Trans. Am. Math. Soc. 149, 75–88 (1970)
Voisei, M.D., Zălinescu, C.: Maximal monotonicity criteria for the composition and the sum under weak interiority conditions. Math. Program., Ser. B 123, 265–283 (2010)
Borwein, J.M., Yao, L.: Some Results on the Convexity of the Closure of the Domain of a Maximally Monotone Operator (2012). submitted. http://arxiv.org/abs/1205.4482v1
Acknowledgements
Both authors were partially supported by various Australian Research Council grants. They thank Dr. Brailey Sims for his helpful comments, and also thank a referee for his/her careful reading and pertinent comments. The authors especially thank Dr. Robert Csetnek for his many constructive and helpful comments.
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J.M. Borwein is Laureate Professor at the University of Newcastle and Distinguished Professor at King Abdul-Aziz University, Jeddah.
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Borwein, J.M., Yao, L. Structure Theory for Maximally Monotone Operators with Points of Continuity. J Optim Theory Appl 157, 1–24 (2013). https://doi.org/10.1007/s10957-012-0162-y
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DOI: https://doi.org/10.1007/s10957-012-0162-y