Number Theory Web Seminar: Igor Shparlinski (UNSW Sydney)

Sums of Kloosterman and Salie Sums and Moments of L-functions

We present some old and more recent results which suggest that Kloosterman and Salie sums exhibit a pseudorandom behaviour similar to the behaviour which is traditionally attributed to the Mobius function. In particular, we formulate some analogues of the Chowla Conjecture for Kloosterman and Salie sums. We then describe several results about the non-correlation of Kloosterman and Salie sums between themselves and also with some classical number-theoretic functions such as the Mobius function, the divisor function and the sums of binary digits. Various arithmetic applications of these results, including to asymptotic formulas for moments of various L-functions, will be outlined as well.

For further information about the seminar, please visit this webpage.

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