4 papers
math.CA2020
Three-term arithmetic progressions in subsets of of large Fourier dimension
Robert Fraser
We show that subsets of of large Fourier dimension must contain three-term arithmetic progressions. This contrasts with a construction of Shmerkin of a subs…
math.CA2019
On The Local Sum Conjecture in Two Dimensions
Robert Fraser, James Wright
In this paper we give an elementary proof of the local sum conjecture in two dimensions. In a remarkable paper [CMN, arXiv:1810.11340], this conjecture has been established in all…
math.CA2019
Polynomial Roth theorems on sets of fractional dimensions
Robert Fraser, Shaoming Guo, Malabika Pramanik
Let be a closed set of Hausdorff dimension . Let be a polynomial without a constant term whose degree is bigger tha…
math.CA2017
Explicit Salem sets, Fourier restriction, and metric Diophantine approximation in the -adic numbers
Robert Fraser, Kyle Hambrook
We exhibit the first explicit examples of Salem sets in of every dimension by showing that certain sets of well-approximable -adic numbers are Salem se…