Atlas › Modular forms › Weight 8 › Level 52 › 52.8.a › 52.8.a.a

Newform orbit 52.8.a.a

$q$ -expansion

$q - 28q^{3} - 418q^{5} + 124q^{7} - 1403q^{9} + 3848q^{11} + 2197q^{13} + 11704q^{15} + 1154q^{17} + 11320q^{19} - 3472q^{21} + 54216q^{23} + O(q^{25})$

Coefficient field

The coefficients $a_n$ generate $\mathbb{Q}$ . The eigenvalue of $T = T_{3} + T_{5}$ is a root of

$x + 446$

Atkin–Lehner signs

$p$	$w_p$
2	— ( $2^2 \mid 52$ )
13	$-1$

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	−28	−418	124	3848	2197	1154	11320	54216	147702	−46036	−89522	700442	−301388	−273100	836702	−2570984	−2014826	−1008088	4919092	3362858	7782680	−492120	4339994	15406162

$\operatorname{tr} a_n$ 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 52, against the semicircle $\tfrac{2}{\pi}\sqrt{1 - x^2}$ :

Provenance

Stored in the atlas: computed by Sagebrush's modular symbols engine in 0.295 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, 4, 13, 26, 52]: [1, 3, 5, 9, 27, 52] (certified at ell = 2147483629)
T = [(3, 1), (5, 1)]; h of degree 7 = 1 x 7 (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(52, 8)[0]   # 52.8.a.a

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

cargo run --release -p sagebrush-web --example atlas -- 52:8 1000