acb_theta_g2_character
Synopsis
#include <flint/acb_theta.h>slong acb_theta_g2_character(const fmpz_mat_t mat)sourceReturns the value (0 or 1, in \mathbb{Z}/2\mathbb{Z}) at mat of the unique nontrivial character of \mathrm{Sp}_4(\mathbb{Z}) [CFG2019, §12].
References#
- [CFG2019] F. Cléry, C. Faber, and G. van der Geer. "Covariants of binary sextics and modular forms of degree 2 with character", Math. Comp. 88 (2019), 2423–2441. https://doi.org/10.1090/mcom/3412
Cite this page
The FLINT team, “acb_theta_g2_character (acb_theta.h),” FLINT: Fast Library for Number Theory, documentation, version 3.7.0-dev, 2026. https://flintlib.org/doc/acb_theta/acb_theta_g2_character.html (generated 2026-10-20).
@misc{flint-doc-acb-theta-acb-theta-g2-character,
author = {{The FLINT team}},
title = {{acb\_theta\_g2\_character (acb\_theta.h)}},
howpublished = {FLINT: Fast Library for Number Theory, documentation, version 3.7.0-dev},
year = {2026},
url = {https://flintlib.org/doc/acb_theta/acb_theta_g2_character.html},
note = {Generated 2026-10-20}
}