Spherical Means and the Restriction Phenomenon.
Stable semi-groups of measures as commutative approximate identities on non-graded homogeneous groups.
Stable semi-groups of measures on the Heisenberg group
Structure of function algebras on foliated manifolds.
Sugli insiemi piccoli in un gruppo
Un insieme in un gruppo si dice piccolo se esistono infiniti traslati di a due a due disgiunti. In questa nota dimostriamo in modo elementare che, sotto opportune ipotesi, non può essere l'unione di un numero finito di insiemi piccoli (e una generalizzazione di questo risultato).
Suites de -orbite finie.
Supports of Gauss measures on semisimple Lie groups.
Sur la norme des opérateurs de convolution.
Sur l’équation pour un noyau de convolution
Sur les mesures dont la transformée de Fourier-Stieltjes ne tend pas vers 0 à l'infini
Sur les mesures quasi-idempotentes et la fermeture de
Symmetrische Gaussverteilungen sind diffus.
Tame -multipliers
We call an -multiplier m tame if for each complex homomorphism χ acting on the space of multipliers there is some and |a| ≤ 1 such that for all γ ∈ Γ. Examples of tame multipliers include tame measures and one-sided Riesz products. Tame multipliers show an interesting similarity to measures. Indeed we show that the only tame idempotent multipliers are measures. We obtain quantitative estimates on the size of -improving tame multipliers which are similar to those obtained for measures, but...
The center of an algebra of operators
The Choquet-Deny theorem and distal properties of totally disconnected locally compact groups of polynomial growth.
The convolution equation of Choquet and Deny on semigroups
The convolution equation of Choquet and Deny and relatively invariant measures on semigroups
Choquet and Deny considered on an abelian locally compact topological group the representation of a measure as the convolution product of itself and a finite measure .In this paper, we make an attempt to find, in the case of certain locally compact semigroups, those solutions of the above equation which are relatively invariant on the support of . A characterization of relatively invariant measures on certain locally compact semigroups is also presented. Our results on the above convolution...
The dual of the space of measures with continuous translations.
The F. and M. Riesz theorem revisited.
The Fubini Theorem and Convolution Formula for Regular Measures.