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                \begin{document}$$\Delta _0$$\end{document}$ of $\documentclass[12pt]{minimal}
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                \begin{document}$$\mathcal H_0$$\end{document}$; the bandwidth $\documentclass[12pt]{minimal}
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                \begin{document}$$t_0$$\end{document}$ of $\documentclass[12pt]{minimal}
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                \begin{document}$${\mathcal {H}}_0$$\end{document}$; and the inte