arXiv · math/0402371
Let $π$ be a cuspidal generic representation of ${\rm SO}(2n+1,\A)$. We prove that $L(\frac12,π)\ge0$.
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Erez Lapid, Stephen Rallis. 2004-02-23. On the nonnegativity of $L(\frac 12,π)$ for $SO(2n+1)$. https://arxiv.org/abs/math/0402371
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