Exceptional sets of the Oppenheim expansions over the field of formal Laurent series
Exceptional sets of the Oppenheim expansions over the field of formal Laurent series
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奥本海姆在正式洛朗级数领域的扩展的特殊集合
DOI:
10.1016/j.ffa.2016.08.002
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发表时间:
2016-11
影响因子:
1
通讯作者:
Zhen-liang Zhang
中科院分区:
文献类型:
--
作者:
Mei-Ying Lü;Jia Liu;Zhen-liang Zhang
Let F q be a finite field with q elements, F q ((z− 1)) denote the field of all formal Laurent series with coefficients in F q and I be the valuation ideal of F q ((z− 1)). For any formal Laurent series x=∑ n= ν∞ c n z− n∈ I, the series 1 a 1 (x)+∑ n= 1∞ r 1 (a 1 (x))⋯ r n (a n (x)) s 1 (a 1 (x))⋯ s n (a n (x)) 1 a n+ 1 (x) is the Oppenheim expansion of x. Suppose ϕ: N→ R+ is a function satisfying ϕ (n)/n→∞ as n→∞. In this paper, we quantify the size, in the sense of Hausdorff dimension, of the set E (ϕ)={x∈ I: lim n→∞∑ j= 0 n− 1 Δ j (x) ϕ (n)= 1}, where Δ 0 (x)= deg a 1 (x) and Δ n (x)= deg a n+ 1 (x)− 2 deg a n (x)− deg r n (a n (x))+ deg s n (a n (x)) for all n≥ 1. As applications, we investigate the cases when ϕ (n) are the given polynomial or exponential functions. At the end of the article, we list some special cases (including Lüroth, Engel, Sylvester expansions of Laurent series and Cantor infinite products of Laurent series) to which we apply the conclusions above.
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影响因子:
0.7
作者:
Meiying Lü
通讯作者:
Meiying Lü
DOI:
10.1016/0377-0427(89)90337-3
发表时间:
1989-12
影响因子:
2.4
作者:
A. Knopfmacher;J. Knopfmacher
通讯作者:
A. Knopfmacher;J. Knopfmacher
DOI:
10.1007/bf02896955
发表时间:
1997-05
期刊:
Science in China Series A: Mathematics
影响因子:
--
作者:
De-Jun Feng;Z. Wen;Jun Wu
通讯作者:
De-Jun Feng;Z. Wen;Jun Wu
DOI:
10.1016/s0021-9045(02)00064-3
发表时间:
2003-04
期刊:
J. Approx. Theory
影响因子:
--
作者:
A. Fan;Jun Wu
通讯作者:
A. Fan;Jun Wu
影响因子:
2.7
作者:
A. Knopfmacher;J. Knopfmacher
通讯作者:
A. Knopfmacher;J. Knopfmacher