Published January 11, 2019 | Version Submitted + Published
Journal Article Open

On Cartesian Products which Determine Few Distinct Distances

Abstract

Every set of points P determines Ω(|P|/log|P|) distances. A close version of this was initially conjectured by Erdős in 1946 and rather recently proved by Guth and Katz. We show that when near this lower bound, a point set P of the form A×A must satisfy |A−A|≪|A|2−2/7log1/7|A| This improves recent results of Hanson and Roche-Newton.

Additional Information

© 2019 The author. Released under the CC BY-ND license (International 4.0). Submitted: Mar 21, 2018; Accepted: Nov 18, 2018; Published: Jan 11, 2019. I would like to thank Oliver Roche-Newton, Misha Rudnev and Adam Sheffer for helpful conversations.

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Eprint ID
92774
Resolver ID
CaltechAUTHORS:20190207-160429913

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Dates

Created
2019-02-08
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Updated
2023-06-02
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