
arXiv: 1810.08127
We prove that for any compact set E ⊂ R 2 E\subset \mathbb {R}^2 , dim H ( E ) > 1 \dim _{\mathcal {H}}(E)>1 , there exists x ∈ E x\in E such that the Hausdorff dimension of the pinned distance set Δ x ( E ) = { | x − y | : y ∈ E } \begin{equation*} \Delta _x(E)=\{|x-y|: y \in E\} \end{equation*} is no less than min { 4 3 dim H ( E ) − 2 3 , 1 } \min \left \{\frac {4}{3}\dim _{\mathcal {H}}(E)-\frac {2}{3}, 1\right \} . This answers a question recently raised by Guth, Iosevich, Ou, and Wang, as well as improves results of Keleti and Shmerkin.
Length, area, volume, other geometric measure theory, Singular and oscillatory integrals (Calderón-Zygmund, etc.), pinned distances, Hausdorff dimension, Metric Geometry (math.MG), Falconer distance conjecture, Mathematics - Metric Geometry, Mathematics - Classical Analysis and ODEs, Classical Analysis and ODEs (math.CA), FOS: Mathematics, Mathematics - Combinatorics, Combinatorics (math.CO)
Length, area, volume, other geometric measure theory, Singular and oscillatory integrals (Calderón-Zygmund, etc.), pinned distances, Hausdorff dimension, Metric Geometry (math.MG), Falconer distance conjecture, Mathematics - Metric Geometry, Mathematics - Classical Analysis and ODEs, Classical Analysis and ODEs (math.CA), FOS: Mathematics, Mathematics - Combinatorics, Combinatorics (math.CO)
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