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arXiv · 2407.04038

Levinson Functions

Juan Arias de Reyna
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Abstract

Starting from some of Norman Levinson's results, we construct interesting examples of functions $f(s)$ such that for $s=\frac12+it$, we have $Z(t)=2\Re\{\pi^{-\frac{s}{2}}\Gamma(s/2)f(s)\}$. For example one such function is \[\begin{aligned}{\mathcal R }_{-3}(s)=\frac12&\int_{0\swarrow1}\frac{x^{-s}e^{3\pi ix^2}}{e^{\pi i x}-e^{-\pi i x}}\,dx\\&+\frac{1}{2\sqrt{3}}\int_{0\swarrow1}\frac{x^{-s}e^{\frac{\pi i}{3}x^2}}{e^{\pi i x}-e^{-\pi i x}}\Bigl(e^{\frac{\pi i}{2}}+2e^{-\frac{\pi i}{6}}\cos(\tfrac{2\pi x}{3})\Bigr)\,dx.\end{aligned}\]

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Juan Arias de Reyna. 2024-07-04. Levinson Functions. https://arxiv.org/abs/2407.04038

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