Atlas › Modular forms › Weight 4 › Level 182 › 182.4.a › 182.4.a.b

Newform orbit 182.4.a.b

$q$ -expansion

$q + 2q^{2} - 8q^{3} + 4q^{4} + 3q^{5} - 16q^{6} + 7q^{7} + 8q^{8} + 37q^{9} + 6q^{10} - 54q^{11} - 32q^{12} + 13q^{13} + 14q^{14} - 24q^{15} + 16q^{16} - 96q^{17} + 74q^{18} - 151q^{19} + 12q^{20} - 56q^{21} - 108q^{22} + 33q^{23} - 64q^{24} + O(q^{25})$

Coefficient field

The coefficients $a_n$ generate $\mathbb{Q}$ . The eigenvalue of $T = T_{3} + 3T_{5} + 5T_{11} + 7T_{17}$ is a root of

$x + 941$

Atkin–Lehner signs

$p$	$w_p$
2	$-1$
7	$-1$
13	$-1$

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
$\operatorname{tr} a_p$	2	−8	3	7	−54	13	−96	−151	33	183	−331	−88	−42	353	−465	195	552	470	254	132	−943	−727	−1197	753	1037

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

Sato–Tate

The normalized $a_p / 2p^{3/2}$ for the primes $p < 1000$ not dividing 182, against the semicircle $\tfrac{2}{\pi}\sqrt{1 - x^2}$ :

Provenance

Stored in the atlas: computed by Sagebrush's modular symbols engine in 0.223 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, 7, 13, 14, 26, 91, 182]: [1, 2, 3, 5, 8, 13, 30, 88] (certified at ell = 2147483629)
T = [(3, 1), (5, 3), (11, 5), (17, 7)]; h of degree 18 = 1 x 18 (phi(ord eps) x dim S_k^new); 7 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(182, 4)[1]   # 182.4.a.b

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

cargo run --release -p sagebrush-web --example atlas -- 182:4 1000