Atlas › Modular forms › Weight 8 › Level 60 › 60.8.a › 60.8.a.b

Newform orbit 60.8.a.b

$q$ -expansion

$q - 27q^{3} + 125q^{5} - 832q^{7} + 729q^{9} + 3156q^{11} - 7690q^{13} - 3375q^{15} + 258q^{17} + 45740q^{19} + 22464q^{21} + 104832q^{23} + O(q^{25})$

Coefficient field

The coefficients $a_n$ generate $\mathbb{Q}$ . The eigenvalue of $T = T_{7} + T_{11}$ is a root of

$x - 2324$

Atkin–Lehner signs

$p$	$w_p$
2	— ( $2^2 \mid 60$ )
3	$+1$
5	$-1$

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	−27	125	−832	3156	−7690	258	45740	104832	38646	192224	403454	86010	−127348	601272	−1628226	198996	1209782	−699388	−4939320	−1275334	6559712	−3108348	5542410	4513346

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

Sato–Tate

The normalized $a_p / 2p^{7/2}$ for the primes $p < 1000$ not dividing 60, against the semicircle $\tfrac{2}{\pi}\sqrt{1 - x^2}$ :

Provenance

Stored in the atlas: computed by Sagebrush's modular symbols engine in 0.362 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, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60]: [1, 3, 3, 5, 5, 9, 13, 17, 16, 24, 46, 90] (certified at ell = 2147483629)
T = [(7, 1), (11, 1)]; h of degree 4 = 1 x 4 (phi(ord eps) x dim S_k^new); 2 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(60, 8)[1]   # 60.8.a.b

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

cargo run --release -p sagebrush-web --example atlas -- 60:8 1000