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Each space of modular forms $M_k(N,\chi)$ of level $N$, weight $k$, and character $\chi$ can be decomposed into its subspaces of Eisenstein series $E_k(N,\chi)$ and cusp forms $S_k(N,\chi)$, each of which can be further decomposed into old and new spaces.

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• Review status: reviewed
• Last edited by David Farmer on 2019-04-28 21:01:17
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