1997 | OriginalPaper | Buchkapitel
Signed Measures
verfasst von : Edward B. Saff, Vilmos Totik
Erschienen in: Logarithmic Potentials with External Fields
Verlag: Springer Berlin Heidelberg
Enthalten in: Professional Book Archive
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In this chapter the energy problem is generalized to the signed measure case. Suppose that our set ∑ (called a condenser) consists of a finite number of subsets ∑ i on each of which there is a sign and a total charge prescribed for the signed measure. First we show that under these restrictions the energy problem with an external field has a unique solution that is characterized by a self duality property. The weighted equilibrium potential satisfies analogous inequalities and characterization as in the positive measure case.