Analogy of Lagrange spectrum related to geometric progressions

Hajime Kaneko (University of Tsukuba)

07-Jul-2020, 12:30-13:30 (4 years ago)

Abstract: Classical Lagrange spectrum is defined by Diophantine approximation properties of arithmetic progressions. The theory of Lagrange spectrum is related to number theory and symbolic dynamics. In our talk we introduce significantly analogous results of Lagrange spectrum in uniform distribution theory of geometric progressions. In particular, we discuss the geometric sequences whose common ratios are Pisot numbers. For studying the fractional parts of geometric sequences, we introduce certain numeration system.

This talk is based on a joint work with Shigeki Akiyama.

dynamical systemsnumber theory

Audience: researchers in the topic

( paper | slides )


One World Numeration seminar

Series comments: Description: Online seminar on numeration systems and related topics

For questions or subscribing to the mailing list, contact the organisers at numeration@irif.fr

Organizers: Shigeki Akiyama, Ayreena Bakhtawar, Karma Dajani, Kevin Hare, Hajime Kaneko, Niels Langeveld, Lingmin Liao, Wolfgang Steiner*
*contact for this listing

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