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Authors
Affiliations
1 Universit at Heidelberg, Mathematisches Institut, INF 288, D-69120 Heidelberg, DE
2 Universidad de Chile, Dept. de Matematicas, Casilla 653, Santiago 1, CL
Source
Journal of the Ramanujan Mathematical Society, Vol 23, No 4 (2008), Pagination: 337–356
Abstract
Using the Rankin-Selberg method and Eichler-Shimura cohomology we give a set of generators for the space of cusp forms of odd prime level and even weight ≥ 4 whose elements are the cuspidal parts of products of two specific Eisenstein series.We also give an explicit description of the orthogonal projection onto the subspace of newforms and in this way obtain a “simple” set of generators for the latter space.