2019/07/06 by Chen, Changhao, Shparlinski, Igor E.
#11J83 #11K38 #11L15 #Classical Analysis and ODEs (math.CA) #FOS: Mathematics #Number Theory (math.NT)
paper · doi:10.48550/arxiv.1907.03101
We prove that the set of (x1, …, xd)∈ [0,1)d, such that \underlinelimN→ ∞| ∑n=1Nexp(2 πi (x1n+… + xdnd)) | =0, contains a dense Gδ set in [0,1)d and has a positive Hausdorff dimension. Similar statements are also established for the generalised Gaussian sums ∑n=1Nexp(2πi x nd), x ∈ [0,1).