Better than squareroot cancellation for multiplicative functions
Recent developments in Analytic Number Theory May 01, 2017 - May 05, 2017
Location: SLMath: Eisenbud Auditorium
Tags/Keywords
mobius function
Dirichlet characters
multiplicative chaos
random multiplicative function
complex analysis
Harper
It is a standard heuristic that sums of oscillating number theoretic functions, like the M\"obius function or Dirichlet characters, should exhibit squareroot cancellation. It is often very difficult to prove anything as strong as that, and we generally expect that if we could prove squareroot cancellation it would be the best possible bound. I will discuss recent results showing that, in fact, certain averages of multiplicative functions exhibit a bit more than squareroot cancellation
Haper.Notes
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Harper
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