Atlas › Modular forms › Weight 6 › Level 80 › 80.6.a › 80.6.a.a

Newform orbit 80.6.a.a

$q$ -expansion

$q - 24q^{3} + 25q^{5} + 172q^{7} + 333q^{9} - 132q^{11} - 946q^{13} - 600q^{15} - 222q^{17} - 500q^{19} - 4128q^{21} - 3564q^{23} + O(q^{25})$

Coefficient field

The coefficients $a_n$ generate $\mathbb{Q}$ . The eigenvalue of $T = T_{3} + T_{7}$ is a root of

$x - 148$

Atkin–Lehner signs

$p$	$w_p$
2	— ( $2^2 \mid 80$ )
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	−24	25	172	−132	−946	−222	−500	−3564	2190	−2312	−11242	1242	−20624	−6588	−21066	−7980	16622	−1808	24528	20474	46240	51576	−110310	−78382

$\operatorname{tr} a_n$ 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 80, against the semicircle $\tfrac{2}{\pi}\sqrt{1 - x^2}$ :

Provenance

Stored in the atlas: computed by Sagebrush's modular symbols engine in 0.281 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, 5, 8, 10, 16, 20, 40, 80]: [1, 2, 4, 3, 7, 9, 12, 18, 34, 64] (certified at ell = 2147483629)
T = [(3, 1), (7, 1)]; h of degree 10 = 1 x 10 (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(80, 6)[0]   # 80.6.a.a

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

cargo run --release -p sagebrush-web --example atlas -- 80:6 1000