Abstract:
An upper bound for the multiplicative energy of the spectrum of an arbitrary subset of FpFp is obtained. Apparently, at present, this is the best bound.
Keywords:
large exponential sum, multiplicative energy, sum-product phenomenon.
Citation:
I. D. Shkredov, “A Short Remark on the Multiplicative Energy of the Spectrum”, Mat. Zametki, 105:3 (2019), 444–454; Math. Notes, 105:3-4 (2019), 449–457