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Maximal monotonicity of dense type, local maximal monotonicity, and monotonicity of the conjugate are all the same for continuous linear operators

Bauschke, Heinz H. and Borwein, Jonathan M. (1999) Maximal monotonicity of dense type, local maximal monotonicity, and monotonicity of the conjugate are all the same for continuous linear operators. PACIFIC JOURNAL OF MATHEMATICS, 189 (1). pp. 1-20.

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      Abstract

      The concept of a monotone operator --- which covers both linear positive semi-definite operators and subdifferentials fo convex functions --- is fundamental in various branches of mathematics. Over the last few decades, several stronger notions of monotonicity have been introduced: Gossez's maximal monotonicity of dense type, Fitzpatrick and Phelps's local maximal monotonicity, and Simons's monotonicity of type (NI). While these monotonicities are automatic for maximal monotone operators in reflexive Banach spaces and for subdifferentials of convex functions, their precise relationship is largely unknown. Here, it is shown --- within the beautiful framework of Convex Analysis --- that for continuous linear monotone operators, \emph{all these notions coincide and are equivalent to the monotonicity of the conjugate operator}. This condition is further analyzed and illustrated by examples.

      Item Type: Article
      Additional Information: pubdom FALSE
      Uncontrolled Keywords: antisymmetric operator, maximal monotone operator, maximal monotone operator of dense type, monotone operator, locally maximal
      Subjects: UNSPECIFIED
      Faculty: UNSPECIFIED
      Depositing User: Users 1 not found.
      Date Deposited: 25 Nov 2003
      Last Modified: 13 Jan 2015 13:41
      URI: https://docserver.carma.newcastle.edu.au/id/eprint/180

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