Séminaires : Séminaire Théorie des Nombres

Equipe(s) : tn,
Responsables :Ziyang Gao, Marc Hindry, Bruno Kahn, João Pedro P. dos Santos
Email des responsables : ziyang.gao@imj-prg.fr
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Description

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Orateur(s) Yingkun Li - ,
Titre The span of restrictions of coherent Eisenstein series
Date08/06/2015
Horaire14:00 à 16:00
Diffusion
RésumeIn the theory of modular forms, Eisenstein series plays animportant role because of its explicit Fourier coefficients. It iswell-known that the algebra of modular forms on $SL_2(\mathbb{Z})$ isgenerated by the classical Eisenstein series $E_4$ and $E_6$. For a fixedweight $k$, Kohnen and Zagier showed that it suffices to consider the spanof the products of two Eisenstein series $E_\ell$ and $E_{k - \ell}$. Inthis talk, we will look at a related question, first raised by TonghaiYang, about the span of the restrictions of coherent Eisenstein series. Wewill discuss the construction of these Eisenstein series, its relationshipto special values of L-function, and other related open problems.
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