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Some properties of Vitali sets

  • Surinder Pal Singh Kainth ORCID logo and Narinder Singh ORCID logo EMAIL logo
Published/Copyright: November 11, 2022
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Abstract

If V 1 , , V n are translations of a Vitali set by rational numbers, then we prove that i = 1 n V i contains no measurable subset of positive measure. This provides a decomposition of as a countable union of disjoint sets, any finite union of which has Lebesgue inner measure zero. As a consequence, we present a function δ : ( 0 , + ) for which there is no measurable function f : satisfying 0 < f δ , on any measurable set of positive Lebesgue measure.

MSC 2010: 28A05; 28A20; 03E25

Award Identifier / Grant number: 1033/(CSIR-UGC NET DEC. 2016)

Funding statement: Narinder Singh is supported by UGC India with Ref. No. 1033/(CSIR-UGC NET DEC. 2016).

References

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Received: 2022-02-06
Accepted: 2022-05-18
Published Online: 2022-11-11
Published in Print: 2023-02-01

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