Comptes Rendus
Functional Analysis
A representation of maximal monotone operators by closed convex functions and its impact on calculus rules
[Une représentation des opérateurs maximaux monotones par des fonctions convexes et son impact sur les règles de calcul]
Comptes Rendus. Mathématique, Volume 338 (2004) no. 11, pp. 853-858.

Nous introduisons une représentation nouvelle pour les opérateurs maximaux monotones à l'aide de fonctions convexes. Nous la relions à des représentations dues à Krauss, Fitzpatrick, Martı́nez-Legaz et Théra. Nous montrons son utilité pour obtenir des règles de composition et de somme.

We introduce a new representation for maximal monotone operators. We relate it to previous representations given by Krauss, Fitzpatrick and Martı́nez-Legaz and Théra. We show its usefulness for the study of compositions and sums of maximal monotone operators.

Reçu le :
Accepté le :
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DOI : 10.1016/j.crma.2004.03.017
Jean-Paul Penot 1

1 Laboratoire de mathématiques appliquées, faculté des sciences, CNRS 2070, BP 1155, 64013 Pau cedex, France
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Jean-Paul Penot. A representation of maximal monotone operators by closed convex functions and its impact on calculus rules. Comptes Rendus. Mathématique, Volume 338 (2004) no. 11, pp. 853-858. doi : 10.1016/j.crma.2004.03.017. https://comptes-rendus.academie-sciences.fr/mathematique/articles/10.1016/j.crma.2004.03.017/

[1] H. Attouch On the maximality of the sum of two maximal monotone operators, Nonlinear Anal., Volume 5 (1981) no. 2, pp. 143-147

[2] H. Attouch; H. Brezis Duality for the sum of convex functions in general Banach spaces (J.A. Barroso, ed.), Aspects of Mathematics and its Applications, North-Holland, Amsterdam, 1986, pp. 125-133

[3] H. Brezis Opérateurs maximaux monotones et semi-groupes de contractions dans les espaces de Hilbert, North-Holland, Amsterdam, 1971

[4] R.S. Burachik; B.F. Svaiter ε-enlargements of maximal monotone operators in Banach spaces, Set-Valued Anal., Volume 7 (1999) no. 2, pp. 117-132

[5] R.S. Burachik; B.F. Svaiter Maximal monotone operators, convex functions and a special family of enlargements, Set-Valued Anal., Volume 10 (2002) no. 4, pp. 297-316

[6] S. Fitzpatrick Representing monotone operators by convex functions, Functional Analysis and Optimization, Workshop and Miniconference, Canberra, Australia, 1988, Proc. Centre Math. Anal. Austral. Nat. Univ., vol. 20, 1988, pp. 59-65

[7] E. Krauss A representation of maximal monotone operators by saddle functions, Rev. Roumainl Math. Pures Appl., Volume 30 (1985), pp. 823-836

[8] E. Krauss A representation of arbitrary maximal monotone operators via subgradients of skew-symmetric saddle functions, Nonlinear Anal., Volume 9 (1985), pp. 1381-1399

[9] E. Krauss Maximal monotone operators and saddle functions. I, Z. Anal. Anwend., Volume 5 (1986), pp. 333-346

[10] J.E. Martínez-Legaz; M. Théra A convex representation of maximal monotone operators, J. Nonlinear and Convex Anal., Volume 2 (2001) no. 2, pp. 243-247

[11] S. Simons Minimax and Monotonicity, Lecture Notes in Math., vol. 1693, Springer, Berlin, 1998

[12] S. Simons Sum theorems for monotone operators and convex functions, Trans. Amer. Math. Soc., Volume 350 (1998) no. 7, pp. 2953-2972

[13] B.F. Svaiter A family of enlargements of maximal monotone operators, Set-Valued Anal., Volume 8 (2000) no. 4, pp. 311-328

[14] C. Zalinescu Convex Analysis in General Vector Spaces, World Scientific, Singapore, 2002

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