Atlas › Modular forms › Weight 2 › Level 632 › 632.2.a › 632.2.a.d

Newform orbit 632.2.a.d

Trace form

The 3 newforms in this orbit are conjugate over $\mathbb{Q}$ ; the sum of their $q$ -expansions is

$3q - q^{3} - 6q^{5} + q^{7} + 4q^{9} - q^{11} - 14q^{13} - 3q^{15} + 4q^{17} - 7q^{19} - 13q^{21} + 7q^{23} + O(q^{25})$

Coefficient field

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

$x^{3} + 19x^{2} + 93x + 26$

Atkin–Lehner signs

$p$	$w_p$
2	— ( $2^2 \mid 632$ )
79	$-1$

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	−1	−6	1	−1	−14	4	−7	7	−18	−5	−8	−4	−12	3	4	9	−10	−7	25	−9	3	−6	10	−14

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

Provenance

Stored in the atlas: computed by Sagebrush's modular symbols engine in 0.333 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, 8, 79, 158, 316, 632]: [0, 1, 2, 3, 7, 22, 43, 84] (certified at ell = 2147483053)
T = [(3, 1), (5, 3)]; 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(632, 2)[3]   # 632.2.a.d

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

cargo run --release -p sagebrush-web --example atlas -- 632:2 1000