On a theorem of Saeki concerning convolution squares of singular measures
If , then there exists a probability measure such that the Hausdorff dimension of the support of is and is a Lipschitz function of class .
Sets of uniqueness
Hausdorff and Fourier dimension
There is no constraint on the relation between the Fourier and Hausdorff dimension of a set beyond the condition that the Fourier dimension must not exceed the Hausdorff dimension.
Fourier Transforms of Measures and Algebraic Relations on Their Supports
We investigate the relation between the rate of decrease of a Fourier transform and the possible algebraic relations on its support.
On the theorem of Ivasev-Musatov. II
As in Part I [Annales de l’Inst. Fourier, 27-3 (1997), 97-113], our object is to construct a measure whose support has Lebesgue measure zero, but whose Fourier transform drops away extremely fast.
Some results on Kronecker, Dirichlet and Helson sets
We construct the following: a perfect non Dirichlet set every proper closed subset of which is Kronecker, A weak Kronecker set which is not an set; an independent countable Dirichlet set which is not Kronecker; a collection of -disjoint Kronecker sets whose union is independent but Helson ; A countable collection of disjoint Kronecker sets whose union is closed and independent but not Helson: a perfect independent Dirichlet set which is not Helson.
On the theorem of Ivasev-Musatov. I
We give a new version of Ivasev-Musatov’s construction of a measure whose support has Lebesgue measure zero but whose Fourier transform drops away extremely rapidly.
On the representation of functions by trigonometric series
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