On a certain class of exponential sums.
On a congruence relation between Jacobi sums and cyclotomic units.
On a conjecture of Norton
On a multiple trigonometric series
On a product related to the cubic Gauss sum.
On a sum involving the Möbius function
Let be the Ramanujan sum, i.e. , where μ is the Möbius function. In a paper of Chan and Kumchev (2012), asymptotic formulas for (k = 1,2) are obtained. As an analogous problem, we evaluate (k = 1,2), where .
On a sum of Vinogradov
On an asymmetric divisor problem with congruence conditions.
On certain trigonometric sums in several variables.
On character sums and the non-vanishing for s > 0 of Dirichlet L-series belonging to real odd characters χ
On characters and polynomials
On cosine polynomials corresponding to sets of integers
On Dirichlet series associated with cubic Gauss sums.
On exponential sums involving the divisor function.
On exponential sums involving the Fourier coefficients of Maass wave forms.
On gigantic density of zeros of some signals defined by prime numbers
On recurrence properties of certain lacunary series. I. General results.
On recurrence properties of certain lacunary series. II. General results.
On some exponential sums involving divisor functions.
On some exponential sums related to Kloosterman sums