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arXiv · 1811.10011

Zeros of certain weakly holomorphic modular forms for the Fricke group $\Gamma_0^+(3)$

Seiichi Hanamoto·Seiji Kuga
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Abstract

Let $M_k^!(\Gamma_0^+(3))$ be the space of weakly holomorphic modular forms of weight $k$ for the Fricke group of level $3$. We introduce a natural basis for $M_k^!(\Gamma_0^+(3))$ and prove that for almost all basis elements, all of their zeros in a fundamental domain lie on the circle centered at 0 with radius $\frac{1}{\sqrt{3}}$.

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Seiichi Hanamoto, Seiji Kuga. 2018-11-25. Zeros of certain weakly holomorphic modular forms for the Fricke group $\Gamma_0^+(3)$. https://arxiv.org/abs/1811.10011

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