Galois structure of modular forms of even weight


Gurel E.

JOURNAL OF NUMBER THEORY, cilt.129, ss.2274-2288, 2009 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 129 Konu: 10
  • Basım Tarihi: 2009
  • Doi Numarası: 10.1016/j.jnt.2009.04.005
  • Dergi Adı: JOURNAL OF NUMBER THEORY
  • Sayfa Sayıları: ss.2274-2288

Özet

We calculate the equivariant Euler characteristics of powers of the canonical sheaf on certain modular curves over Z which have a tame action of a finite abelian group. As a consequence, we obtain information on the Galois module structure of modular forms of even weight having Fourier coefficients in certain ideals of rings of cyclotomic algebraic integers. (c) 2009 Elsevier Inc. All rights reserved.