Transfinite diameters and modulii of condensers in semimetric spaces

The classical definitions for transfinite diameter of a set and for transfinite (discrete) modulus of a condenser in $R^n$ have been extended for the objects in semimetric spaces. The Anderson-Vamanamurthy's folmula has been proved to be valid in arbitrary semimetric spaces. The Belinskij's problem on the Mobius property of topological embeddings, which are preserving transfinite modulii of all condensers of the given type, has been solved in the spaces with a continuous semimetric. Bibl. 12.