Modular forms of half-integral weights on SL(2,Z)
Number Theory
2011-10-11 v1
Abstract
In this paper, we prove that, for an integer with and and a nonnegative even integer , the set {\eta(24\tau)^rf(24\tau):f(\tau)\in M_s(1)} is isomorphic to S_{r+2s-1}^{\text{new}}(6,-(\frac8r),-(\frac{12}r))\otimes(\frac{12}\cdot) as Hecke modules under the Shimura correspondence. Here denotes the space of modular forms of weight on , is the space of newforms of weight on that are eigenfunctions with eigenvalues and for Atkin-Lehner involutions and , respectively, and the notation means the twist by the quadratic character . There is also an analogous result for the cases .
Keywords
Cite
@article{arxiv.1110.1810,
title = {Modular forms of half-integral weights on SL(2,Z)},
author = {Yifan Yang},
journal= {arXiv preprint arXiv:1110.1810},
year = {2011}
}
Comments
57 pages