Products of Eisenstein series and Fourier expansions of modular forms at cusps
Products of Eisenstein series and Fourier expansions of modular forms at cusps
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爱森斯坦级数的乘积和尖点模形式的傅里叶展开
DOI:
10.1016/j.jnt.2017.12.013
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发表时间:
2018
影响因子:
0.7
通讯作者:
Dickson M
中科院分区:
文献类型:
--
作者:
Dickson M
We show, for levels of the form N= p a q b N′ with N′ squarefree, that in weights k≥ 4 every cusp form f∈ S k (N) is a linear combination of products of certain Eisenstein series of lower weight. In weight k= 2 we show that the forms f which can be obtained in this way are precisely those in the subspace generated by eigenforms g with L (g, 1)≠ 0. As an application of such representations of modular forms we can calculate Fourier expansions of modular forms at arbitrary cusps and we give several examples of such expansions in the last section.
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DOI:
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发表时间:
1994
期刊:
影响因子:
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作者:
L. Merel
通讯作者:
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DOI:
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发表时间:
2017-08
期刊:
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影响因子:
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H. Cohen;Fredrik Strömberg
影响因子:
3.1
作者:
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通讯作者:
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发表时间:
2014
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作者:
Martin Westerholt
通讯作者:
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DOI:
10.5802/jtnb.963
发表时间:
2012
期刊:
arXiv: Number Theory
影响因子:
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作者:
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