8 papers
Quantitative flatness and obstructions in Fourier analysis
Jonathan M. Fraser
Three important problems in Fourier analysis are the Fourier restriction problem, the -improving problem, and the Fourier decay problem. Positive results for any of these prob…
Fourier restriction estimates based on -dimensions: beyond Stein--Tomas
Marc Carnovale, Jonathan M. Fraser, Ana E. de Orellana
The well-known Stein--Tomas restriction theorem gives the sharp range of for which restriction estimates hold for the surface measure on the sphere. This was gener…
Fourier analytic variants of the Furstenberg and Kakeya problems
Jonathan M. Fraser, Lijian Yang
We study several distinct but related Fourier analytic variants of the well-known Kakeya and Furstenberg set problems in the plane. For example, given , we call a set $K \…
Brascamp--Lieb inequalities for fractal dimensions
Jonathan M. Fraser
We use the Brascamp--Lieb inequality from functional analysis to prove novel inequalities for the upper box, packing, and Assouad dimensions of fractal sets in terms of the dimensi…
On Fourier decay and the distance set problem
Jonathan M. Fraser, Thang Pham
We study the Falconer distance set problem in Euclidean space and obtain improved dimensional estimates under natural Fourier analytic assumptions cast in terms of the Fourier dime…
An invitation to dimension interpolation
Jonathan M. Fraser
A \emph{fractal} is an object exhibiting complexity at arbitrarily small scales. In order to study and characterise fractals, one is often interested in quantifying how they fill u…