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Weighted capacities, moduli of condensers, and exceptional sets in the Fuglede sense. (English. Russian original) Zbl 0863.31007

Russ. Acad. Sci., Dokl., Math. 48, No. 2, 353-358 (1994); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 332, No. 4, 428-431 (1993).
Summary: We establish that the weighted \(p\)-capacity is equal to the weighted \(p\)-modulus for a condenser \((F_0,F_1,G/E)\), \(1<p<\infty\), under very general assumptions about the topology of \(F_0,F_1,G\), and \(E\) in the compactified Euclidean space \(\overline \mathbb{R}^n= \mathbb{R}^n\cup \{\infty\}\). In particular, this equality yields assertions about the “continuity” of the \(p\)-modulus in the sense of M. Ohtsuka [cf. Analytic Functions, Błażejewko, 1982, Lect. Notes Math. 1039 (1983) p. 467 problems section], and about the \(p\)-capacity and the \(p\)-modulus of a condenser in the sense of M. Brelot [Éléments de la théorie classique du potentiel, 3rd ed., Paris, 1959; Zbl 0084.30903)].
Moreover, we introduce weighted \(p\)-exceptional sets in the sense of B. Fuglede [Acta Math. 98, 171-219 (1957; Zbl 0079.27703)] and give an application of them to the theory of function spaces.

MSC:

31B15 Potentials and capacities, extremal length and related notions in higher dimensions