Atlas › Modular forms › Weight 6 › Level 70 › 70.6.a › 70.6.a.a

Newform orbit 70.6.a.a

$q$ -expansion

$q - 4q^{2} - 23q^{3} + 16q^{4} + 25q^{5} + 92q^{6} + 49q^{7} - 64q^{8} + 286q^{9} - 100q^{10} + 555q^{11} - 368q^{12} - 241q^{13} - 196q^{14} - 575q^{15} + 256q^{16} - 1491q^{17} - 1144q^{18} - 2038q^{19} + 400q^{20} - 1127q^{21} - 2220q^{22} - 1230q^{23} + 1472q^{24} + O(q^{25})$

Coefficient field

The coefficients $a_n$ generate $\mathbb{Q}$ . The eigenvalue of $T = T_{3} + T_{11}$ is a root of

$x - 532$

Atkin–Lehner signs

$p$	$w_p$
2	$+1$
5	$-1$
7	$-1$

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 odd 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
$\operatorname{tr} a_p$	−4	−23	25	49	555	−241	−1491	−2038	−1230	−5001	5696	−5602	−2424	602	−23163	−25296	5724	−36112	66104	16080	−80482	−64147	−106284	−71676	151025

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

Sato–Tate

The normalized $a_p / 2p^{5/2}$ for the primes $p < 1000$ not dividing 70, against the semicircle $\tfrac{2}{\pi}\sqrt{1 - x^2}$ :

Provenance

Stored in the atlas: computed by Sagebrush's modular symbols engine in 0.287 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 engine's checks

dim M^+ at levels [1, 2, 5, 7, 10, 14, 35, 70]: [1, 2, 3, 5, 9, 12, 22, 64] (certified at ell = 2147483629)
T = [(3, 1), (11, 1)]; h of degree 10 = 1 x 10 (phi(ord eps) x dim S_k^new); 4 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(70, 6)[0]   # 70.6.a.a

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

cargo run --release -p sagebrush-web --example atlas -- 70:6 1000