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Abstract Assuming the Riemann Hypothesis, we study negative moments of the Riemann zeta-function and obtain asymptotic formulas in certain ranges of the shift in {\zeta(s)}. For example, integrating {|\zeta(\frac{1}{2}+\alpha+it)|^{-2k}}with respect totfromTto {2T}, we obtain an asymptotic formula when the shift α is roughly bigger than {\frac{1}{\log T}}and {k<\frac{1}{2}}. We also obtain non-trivial upper bounds for much smaller shifts, as long as {\log\frac{1}{\alpha}\ll\log\log T}. This provides partial progress towards a conjecture of Gonek on negative moments of the Riemann zeta-function, and settles the conjecture in certain ranges. As an application, we also obtain an upper bound for the average of the generalized Möbius function.more » « less
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