Resumen de A fundamental theorem for dimension-free Möbius sphere geometries
Walter Benz
Let (X, d) and (V, e) be real inner product spaces of (finite or infinite) dimensions dim X, dim V greater than 1 (see our book [1] for special notions, results and the notation applied in the present paper). Especially the following Theorem 2 will be proved. The Möbius sphere geometries over (X, d), (V, e), respectively, where is the Möbius group, are isomorphic (see [1], p. 16 f) if, and only if, (see [1], p. 1 f).
