An additive subfamily of enlargements of a maximally monotone operator

We introduce a subfamily of additive enlargements of a maximally monotone operator. Our definition is inspired by the early work of Simon Fitzpatrick. These enlargements constitute a subfamily of the family of enlargements introduced by Svaiter. When the operator under consideration is the subdiffer...

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Detalles Bibliográficos
Autores: Burachik, Regina|||0000-0003-1332-6213, Martínez Legaz, Juan Enrique|||0000-0002-6845-6202, Rezaie, M., Théra, M.
Tipo de recurso: artículo
Fecha de publicación:2015
País:España
Institución:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:184720
Acceso en línea:https://ddd.uab.cat/record/184720
https://dx.doi.org/urn:doi:10.1007/s11228-015-0340-9
Access Level:acceso abierto
Palabra clave:Maximally monotone operator
ε-subdifferential mapping
Subdifferential operator
Convex lower semicontinuous function
Fitzpatrick function
Enlargement of an operator
Brøndsted- Rockafellar enlargements
Additive enlargements
Brøndsted- Rockafellar property
Fenchel-Young function
Descripción
Sumario:We introduce a subfamily of additive enlargements of a maximally monotone operator. Our definition is inspired by the early work of Simon Fitzpatrick. These enlargements constitute a subfamily of the family of enlargements introduced by Svaiter. When the operator under consideration is the subdifferential of a convex lower semicontinuous proper function, we prove that some members of the subfamily are smaller than the classical ε-subdifferential enlargement widely used in convex analysis. We also recover the ε-subdifferential within the subfamily. Since they are all additive, the enlargements in our subfamily can be seen as structurally closer to the ε-subdifferential enlargement.