5 papers
Variation bounds for spherical averages over restricted dilates
Reuben Wheeler
We study variation semi-norm estimates for the spherical averaging operator, where .
Fourier Dimension Estimates for Sets of Exact Approximation Order: The Badly-Approximable Case
Robert Fraser, Reuben Wheeler
We show for decreasing, positive approximation functions such that and such that t…
Root structures of polynomials with sparse exponents
Reuben Wheeler
For real polynomials with (sparse) exponents in some fixed set, \[ Ψ(t)=x+y_1t^{k_1}+\ldots +y_L t^{k_L}, \] we analyse the types of root structures that might occur as the coeffic…
Fourier Dimension Estimates for Sets of Exact Approximation Order: the Well-Approximable Case
Robert Fraser, Reuben Wheeler
We obtain a Fourier dimension estimate for sets of exact approximation order introduced by Bugeaud for certain approximation functions . This Fourier dimension estimate implies…
A note on the integrability of a class of Bôchner-Riesz kernels
Reuben Wheeler
For a general compact variety of arbitrary codimension, one can consider the mapping properties of the Bôchner-Riesz multiplier $$ m_{Γ, α}(ζ) \ = \ {\rm dist}(ζ, Γ)^α ϕ(…