Dzmitry Badziahin
Multiplicatively badly approximable numbers and generalised Cantor sets
Badziahin, Dzmitry; Velani, Sanju
Authors
Sanju Velani
Abstract
Let p be a prime number. The p -adic case of the Mixed Littlewood Conjecture states that View the MathML sourceliminfq→∞q⋅|q|p⋅‖qα‖=0 for all α∈Rα∈R. We show that with the additional factor of View the MathML sourcelogqloglogq the statement is false. Indeed, our main result implies that the set of α for which View the MathML sourceliminfq→∞q⋅logq⋅loglogq⋅|q|p⋅‖qα‖>0 is of full dimension. The result is obtained as an application of a general framework for Cantor sets developed in this paper.
Citation
Badziahin, D., & Velani, S. (2011). Multiplicatively badly approximable numbers and generalised Cantor sets. Advances in Mathematics, 228(5), 2766-2796. https://doi.org/10.1016/j.aim.2011.06.041
Journal Article Type | Article |
---|---|
Publication Date | Dec 1, 2011 |
Deposit Date | May 30, 2011 |
Publicly Available Date | May 6, 2014 |
Journal | Advances in Mathematics |
Print ISSN | 0001-8708 |
Publisher | Elsevier |
Peer Reviewed | Peer Reviewed |
Volume | 228 |
Issue | 5 |
Pages | 2766-2796 |
DOI | https://doi.org/10.1016/j.aim.2011.06.041 |
Keywords | Diophantine approximation, Littlewood Conjecture. |
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Copyright Statement
This is the author’s version of a work that was accepted for publication in Advances in Mathematics. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Advances in Mathematics, 228, 5, 2011, 10.1016/j.aim.2011.06.041.
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