On a Zaremba’s Conjecture for Powers

Authors

  • Takao Komatsu Department of Mathematical System Science, Faculty of Science and Technology, Hirosaki University, Hirosaki, Japan

DOI:

https://doi.org/10.5644/SJM.01.1.02

Abstract

A conjecture of Zaremba says that for every $m\ge 2$ there exists a reduced fraction $a/m$ such that its simple continued fraction has all its partial quotients bounded by $5$. This conjecture is proved with all partial quotients bounded by $3$ for $m$ being ${c\cdot 2^n}$-th power of $7$ where $n\ge 0$ and $c=1,3,5,7,9,11$. A more general case is considered.

 

2000 Mathematics Subject Classification. 11A55

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References

M. Mend`es France, Sur les fractions continues limit´ees, Acta Arith., 23 (1973) 207–215.

Niederreiter, Dyadic fractions with small partial quotients, Monatsh. Math., 101 (1986) 309–315.

A. J. van der Poorten and J. Shallit, Folded continued fractions, J. Number Theory, 40 (1992), 237–250.

M. Yodphotong and V. Laohakosol, Proofs of Zaremba’s conjecture for powers of 6, Proceedings of the International Conference on Algebra and its Applications (ICAA 2002) (Bangkok), Chulalongkorn Univ., Bangkok, 2002, pp. 278–282.

S. K. Zaremba, La m´ethode des “bons treillis” pour le calcul des int´egrales multiles, Applications of Number Theory to Numerical Analysis (S. K. Zaremba, ed.), Academic Press, New York, 1972, pp. 39–119.

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Published

12.06.2024

How to Cite

Komatsu, T. (2024). On a Zaremba’s Conjecture for Powers. Sarajevo Journal of Mathematics, 1(1), 9–13. https://doi.org/10.5644/SJM.01.1.02

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Articles