Siegel Paramodular Forms of Weight 2 and Squarefree Level

Siegel Paramodular Forms of Weight 2 and Squarefree Level
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权重 2 和 Squarefree 水平的西格尔参数模形式

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发表时间:
2016
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通讯作者:
D. Yuen
D. Yuen
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作者:
C. Poor;J. Shurman;D. Yuen

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本文计算了N<300$无平方数水平上权为2 $ Siegel仿模尖点型的空间S_2(K(N))$。与A. Brumer和K.克雷默证明,该空间是Jacobi尖点型空间$J_{2,N}^{ ext{cusp}}$除了$N= 249,295 $,当它还包含一个非提升新表单时。对于N的这两个值,相关交换曲面的Hasse-Weil $p$-Euler因子与前两个素数的无升力新形式的自旋$p$-Euler因子相匹配 中N$。
We compute the space $S_2(K(N))$ of weight $2$ Siegel paramodular cusp forms of squarefree level $N<300$. In conformance with the paramodular conjecture of A. Brumer and K. Kramer, the space is only the additive (Gritsenko) lift space of the Jacobi cusp form space $J_{2,N}^{ ext{cusp}}$ except for $N=249,295$, when it further contains one nonlift newform. For these two values of $N$, the Hasse-Weil $p$-Euler factors of a relevant abelian surface match the spin $p$-Euler factors of the nonlift newform for the first two primes $p mid N$.