Skip to content

The distribution of rationals in residue classes

Cristian Cobeli, Alexandru Zaharescu

math.NTarXiv:math/0511356

Abstract

Our purpose is to give an account of the r-tuple problem on the increasing sequence of reduced fractions having denominators bounded by a certain size and belonging to a fixed real interval. We show that when the size grows to infinity, the proportion of the r-tuples of consecutive denominators with components in certain apriori fixed arithmetic progressions with the same ratio approaches a limit, which is independent on the interval. The limit is given explicitly and it is completely described in a few particular instances.

Create a lesson