Atlas › Modular forms › Weight 2 › Level 741 › 741.2.a › 741.2.a.l

Newform orbit 741.2.a.l

Trace form

The 9 newforms in this orbit are conjugate over $\mathbb{Q}$ ; the sum of their $q$ -expansions is

$9q + 9q^{3} + 14q^{4} + 4q^{7} - 3q^{8} + 9q^{9} + 2q^{10} + 12q^{11} + 14q^{12} + 9q^{13} - 12q^{14} + 24q^{16} - 2q^{17} + 9q^{19} + 2q^{20} + 4q^{21} + 10q^{22} + 8q^{23} - 3q^{24} + O(q^{25})$

Coefficient field

The coefficients $a_n$ generate a number field of degree 9. It is generated by the eigenvalue $\alpha$ of $T = T_{2} + 3T_{5}$ , whose minimal polynomial is

$x^{9} - 328x^{7} + 391x^{6} + 35399x^{5} - 70852x^{4} - 1321404x^{3} + 2690593x^{2} + 11787340x - 7974732$

Atkin–Lehner signs

$p$	$w_p$
3	$-1$
13	$-1$
19	$-1$

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
$\operatorname{tr} a_p$	0	9	0	4	12	9	−2	9	8	0	−2	−4	−10	6	−22	−16	6	12	24	−18	30	10	14	−26	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 0.276 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, 3, 13, 19, 39, 57, 247, 741]: [0, 1, 1, 2, 6, 8, 24, 96] (certified at ell = 2147483629)
T = [(2, 1), (5, 3)]; h of degree 35 = 1 x 35 (phi(ord eps) x dim S_k^new); 5 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(741, 2)[11]   # 741.2.a.l

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

cargo run --release -p sagebrush-web --example atlas -- 741:2 1000