Einige Bemerkungen zu den Gauss-Verteilungen auf lokalkompakten abelschen Gruppen

Abstract

Let G be a connected locally compact abelian group and ν a symmetric Gaussian measure on G. We are concerned with the support of the measure ν and with the relation of ν to the Haar measure ω on G. It is shown that the support of ν is always a closed connected subgroup of G. On G there exists an absolutely continuous Gaussian measure (with respect to ω) if and only if G is locally connected and has a countable basis for its open sets. Special interest is given to Gaussian measures on toroidal groups.