Journal article

A Monge-Ampere norm for Delta-plurisubharmonic functions

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Author list: Cegrell, Urban

Publication year: 2005

Start page: 201

End page: 216

Number of pages: 16

ISSN: 0025-5521


Abstract

We consider differences of plurisubharmonic functions in the energy classF as a linear space, and equip this space with a norm, depending on the generalized complex Monge-Ampère operator, turning the linear space into a Banach space dF. Fundamental topological questions for this space is studied, and we prove that dF is not separable. Moreover we investigate the dual space. The study is concluded with comparison between dF and the space of delta-plurisubharmonic functions, with norm depending on the total variation of the Laplace mass, studied by the first author in an earlier paper


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