Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleImprovement of an estimate of H. Müller involving the order of 2(mod u).AuthorsMoree, PieterAbstractFor u odd the order $\ell (u)$ of 2(mod u) in $({\Bbb Z}/u {\Bbb Z})^*$ exists. Recently Helmut Müller has given an estimate for $\sum\limits _{u\le x\atop q\nmid \ell (u)}1$ in this journal, with q an odd prime. This estimate is sharpened.PublicationArchiv der Mathematik, 1998, Vol 71, Issue 3, p197ISSN0003-889XPublication typeArticleDOI10.1007/s000130050252