On the sum of the fractional parts $\sum_{n\leq x}\{ne\}$
A. V. Shutov

References
1.	Ilyasov I. I., Nugaeva Z. T., “Ob ostatke summy $\sum_{n\le x} \{ne\}$”, Algebra i teoriya chisel: sovremennye problemy i prilozheniya, Materialy VII mezhdunarodnoi konferentsii, posvyaschennoi pamyati professora Anatoliya Alekseevicha Karatsuby (Tula, 11–16 maya 2010 goda), TGPU, Tula, 2010, 93–94
2.	Brown T. C., Shiue P. J.-S., “Sums of Fractional Parts of Integer Multiplies of an Irrational”, Journal of Number Theory, 50 (1995), 181–192