Atlas › Modular forms › Weight 12 › Level 12 › 12.12.a › 12.12.a.a

Newform orbit 12.12.a.a

$q$ -expansion

$q - 243q^{3} + 9990q^{5} - 86128q^{7} + 59049q^{9} - 806004q^{11} - 960250q^{13} - 2427570q^{15} - 4306878q^{17} + 401300q^{19} + 20929104q^{21} + 17751528q^{23} + O(q^{25})$

Coefficient field

The coefficients $a_n$ generate $\mathbb{Q}$ . The eigenvalue of $T = T_{5} + T_{7}$ is a root of

$x + 76138$

Atkin–Lehner signs

$p$	$w_p$
2	— ( $2^2 \mid 12$ )
3	$+1$

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	−243	9990	−86128	−806004	−960250	−4306878	401300	17751528	−84704994	140930504	−413506594	150094890	706702028	−2475725472	1600124166	3945492396	−885973498	−4881597772	12631469400	1423335194	667407512	5716071828	−85738736790	−52302647806

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

Sato–Tate

The normalized $a_p / 2p^{11/2}$ for the primes $p < 1000$ not dividing 12, against the semicircle $\tfrac{2}{\pi}\sqrt{1 - x^2}$ :

Provenance

Stored in the atlas: computed by Sagebrush's modular symbols engine in 0.338 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, 6, 12]: [2, 4, 5, 7, 13, 25] (certified at ell = 2147483647)
T = [(5, 1), (7, 1)]; h of degree 2 = 1 x 2 (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(12, 12)[0]   # 12.12.a.a

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

cargo run --release -p sagebrush-web --example atlas -- 12:12 1000