I have in my lecture notes that ##E_{k}(t=0) =1 ##,(adsbygoogle = window.adsbygoogle || []).push({});

##E_k (t)## the Eisenstein series given by:

##E_k (t) = 1 - \frac{2k}{B_k} \sum\limits^{\infty}_1 \sigma_{k-1}(n) q^{n} ##

##B_k## Bermouli number

##q^n = e^{ 2 \pi i n t} ##

context modular forms. Also have set ##lim t \to i\infty = 0## , i.e ##lim q \to 0 = 0##

##n=0## sets this to ##1##

so I have

##E_k (t) = 1 - \frac{2k}{B_k} \sum\limits^{\infty}_1 \sigma_{k-1}(n) ## ??

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# I Eistenstein series E_k(t=0) quick q? Modular forms

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