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math.CA2024
Variation bounds for spherical averages over restricted dilates
Reuben Wheeler
We study variation semi-norm estimates for the spherical averaging operator, where .
math.CA2022
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…
math.CA2020
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(…