Newform orbit 814.2.a.h

Trace form

The 4 newforms in this orbit are conjugate over $\mathbb{Q}$; the sum of their $q$-expansions is

$4q + 4q^{2} + 2q^{3} + 4q^{4} + 2q^{5} + 2q^{6} + 4q^{7} + 4q^{8} + 2q^{10} + 4q^{11} + 2q^{12} + 2q^{13} + 4q^{14} + 4q^{15} + 4q^{16} + 2q^{17} + 2q^{19} + 2q^{20} + 10q^{21} + 4q^{22} + 4q^{23} + 2q^{24} + O(q^{25})$

Coefficient field

The coefficients $a_n$ generate a number field of degree 4. It is generated by the eigenvalue $\alpha$ of $T = T_{3} + 3T_{5}$, whose minimal polynomial is

$x^{4} - 8x^{3} - 58x^{2} + 468x - 31$

Atkin–Lehner signs

For $p \parallel N$ every form in the orbit has $a_p = -p^{k/2-1} w_p$. The Fricke sign is $w_N = -1$, so the sign of the functional equation is $(-1)^{k/2} w_N = +1$: each L-function in the orbit has even analytic rank.

Traces of Hecke eigenvalues

$\operatorname{tr} a_n$ for every $n \le 1000$ is in the JSON.

Provenance

Stored in the atlas: computed by Sagebrush's modular symbols engine in 0.403 s (one thread) and proven: the dimensions are certified, and the characteristic polynomial of $T$ over $\mathbb{Z}$ is reconstructed by CRT past a rigorous coefficient bound. The label, dimension and $\operatorname{tr} a_p$ for every $p < 1000$ equal LMFDB's.

newform_orbits(814, 2)[7]   # 814.2.a.h

cargo run --release -p sagebrush-web --example atlas -- 814:2 1000