Atlas › Modular forms › Weight 2 › Level 629 › 629.2.a › 629.2.a.g

Newform orbit 629.2.a.g

Trace form

The 15 newforms in this orbit are conjugate over $\mathbb{Q}$ ; the sum of their $q$ -expansions is

$15q + 2q^{2} + 22q^{4} + 4q^{5} - 11q^{6} + q^{7} + 6q^{8} + 17q^{9} - 2q^{10} + 14q^{11} - 8q^{12} + 9q^{13} + 5q^{14} + 19q^{15} + 32q^{16} + 15q^{17} + 10q^{18} + 33q^{19} - 3q^{20} - 5q^{21} + 4q^{22} + 14q^{24} + O(q^{25})$

Coefficient field

The coefficients $a_n$ generate a number field of degree 15. It is generated by the eigenvalue $\alpha$ of $T = T_{2} + 3T_{3} + 5T_{5} + 7T_{7}$ , whose minimal polynomial is

$x^{15} - 29x^{14} - 5432x^{13} + 144713x^{12} + 10695479x^{11} - 256830583x^{10} - 9086454853x^{9} + 192625463189x^{8} + 3056682305279x^{7} - 56784524553228x^{6} - 323466639654004x^{5} + 5587350876683173x^{4} + 11546961717786113x^{3} - 171502435196921574x^{2} - 101608000681937099x + 245449439180449631$

Atkin–Lehner signs

$p$	$w_p$
17	$-1$
37	$+1$

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

$p$	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
$\operatorname{tr} a_p$	2	0	4	1	14	9	15	33	0	−10	26	−15	5	30	7	−10	26	−6	37	27	−5	23	30	5	6

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

Provenance

Stored in the atlas: computed by Sagebrush's modular symbols engine in 0.245 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, 17, 37, 629]: [0, 2, 3, 58] (certified at ell = 2147482801)
T = [(2, 1), (3, 3), (5, 5), (7, 7)]; h of degree 49 = 1 x 49 (phi(ord eps) x dim S_k^new); 11 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(629, 2)[6]   # 629.2.a.g

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

cargo run --release -p sagebrush-web --example atlas -- 629:2 1000