A zero density estimate and fractional imaginary parts of zeros for $\mathrm{GL}_2$ $L$-functions
We prove an analogue of Selberg's zero density estimate for $\zeta(s)$ that holds for any $\mathrm{GL}_2$ $L$-function. We use this estimate to study the distribution of the vector of fractional parts of $\gamma\mathbf{\alpha}$, where $\mathbf{\alpha}\in\mathbb{R}^n$ is fixed and $\gamma$ varies over the imaginary parts of the nontrivial zeros of a $\mathrm{GL}_2$ $L$-function.
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Number Theory
