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arXiv 2202.07286math.NT
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CM域上Katz $p$ -adic $L$ -函数的PDKEEPAAA同余与平凡零点

CM congruence and trivial zeros of the Katz $p$-adic $L$-functions for CM fields

Adel Betina, Ming-Lun Hsieh

摘要:

利用CM同余研究Katz $p$ -adic $L$ -函数的平凡零点.证明了一般CM域上Katz $p$ -adic $L$ -函数平凡零点的存在性,并在Leopoldt假设下建立了分圆$p$ -adic $L$ -函数平凡零点处的一阶导数公式.证明中的关键要素是CM域的$p$ -adic Kronecker极限公式的一个特例和反分圆$p$ -adic $L$ -函数在平凡零点处的首项公式,通过Hilbert尖点形式的CM族和非CM Hida族之间的显式同余.

英文摘要:

The aim of this paper is to investigate the trivial zeros of the Katz $p$-adic $L$-functions by the CM congruence. We prove the existence of trivial zeros of the Katz $p$-adic $L$-functions for general CM fields and establish a first derivative formula of the cyclotomic $p$-adic $L$-functions at trivial zeros under some Leopoldt hypothesis. The crucial ingredients in our proof are a special case of $p$-adic Kronecker limit formula for CM fields and a leading term formula of anticyclotomic $p$-adic $L$-functions at trivial zeros via the explicit congruences between CM and non-CM Hida families of Hilbert cusp forms.

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