Atlas › Modular forms › Weight 2 › Level 932 › 932.2.a › 932.2.a.a

Newform orbit 932.2.a.a

Trace form

The 7 newforms in this orbit are conjugate over $\mathbb{Q}$ ; the sum of their $q$ -expansions is

$7q - 4q^{3} - 5q^{5} - q^{7} + 3q^{9} - 3q^{11} - 16q^{13} + 2q^{15} - 9q^{17} - 6q^{19} - 10q^{21} + 4q^{23} + O(q^{25})$

Coefficient field

The coefficients $a_n$ generate a number field of degree 7. It is generated by the eigenvalue $\alpha$ of $T = T_{3} + T_{5}$ , whose minimal polynomial is

$x^{7} + 9x^{6} + 15x^{5} - 27x^{4} - 14x^{3} + 25x^{2} - 9x + 1$

Atkin–Lehner signs

$p$	$w_p$
2	— ( $2^2 \mid 932$ )
233	$-1$

For $p \parallel N$ every form in the orbit has $a_p = -p^{k/2-1} w_p$ .

Traces of Hecke eigenvalues

$p$	2	3	5	7	11	13	17	19	23	29	31	37	41	43	47	53	59	61	67	71	73	79	83	89	97
$\operatorname{tr} a_p$	0	−4	−5	−1	−3	−16	−9	−6	4	−5	2	−22	−4	−23	4	−25	1	−30	−12	9	−33	4	−4	−3	−35

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

Provenance

Stored in the atlas: computed by Sagebrush's modular symbols engine in 0.248 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.

The engine's checks

dim M^+ at levels [1, 2, 4, 233, 466, 932]: [0, 1, 2, 20, 60, 120] (certified at ell = 2147482481)
T = [(3, 1), (5, 1)]; h of degree 20 = 1 x 20 (phi(ord eps) x dim S_k^new); 3 primes, 0 rejected

Open in the notebook · JSON · stored data

Recompute it yourself

In Sage mode at sagebrush.space (or npx sagebrush --sage):

newform_orbits(932, 2)[0]   # 932.2.a.a

With the Rust engine (source), in engine/:

cargo run --release -p sagebrush-web --example atlas -- 932:2 1000