Neighboring Fractions in Farey Subsequences
arXiv:0801.1981
Abstract
We present explicit formulas for the computation of the neighbors of several elements of Farey subsequences.
14 pages; v.2,3 - misprints in Corollary 2.3(ii) and Remark 4.1(iii) corrected; v.4 - minor improvements; v.5 - new Section 2 and references added.