Type: Article
Publication Date: 1992-01-01
Citations: 7
DOI: https://doi.org/10.3792/pjaa.68.131
Introduction.Let a be a positive number.The distribution of the ractional part {an} of an has been studied extensively.It is well-known that it depends heavily on the arithmetic nature of a.We may briefly recall this act for a quadratic irrational a as follows.It was shown by Hardy-Littlewood [6] and Ostrowski [8] that nx <<logX.Hecke [7] has shown, in act, that if a is JD or 1/JD with a positive square free integer D2 or 3 (mod 4), then for any e0 {n}-lo =A lo X+A lo X+A lo X + CX(/(,o+O(X-,),