Atlas › Modular forms › Weight 4 › Level 94 › 94.4.a › 94.4.a.d

Newform orbit 94.4.a.d

Trace form

The 4 newforms in this orbit are conjugate over $\mathbb{Q}$ ; the sum of their $q$ -expansions is

$4q + 8q^{2} + 3q^{3} + 16q^{4} + 10q^{5} + 6q^{6} + 37q^{7} + 32q^{8} + 79q^{9} + 20q^{10} + 66q^{11} + 12q^{12} + 2q^{13} + 74q^{14} - 40q^{15} + 64q^{16} - 77q^{17} + 158q^{18} + 40q^{19} + 40q^{20} - 140q^{21} + 132q^{22} + 84q^{23} + 24q^{24} + O(q^{25})$

Coefficient field

The coefficients $a_n$ generate a number field of degree 4. It is generated by the eigenvalue $\alpha$ of $T = T_{3} + T_{5}$ , whose minimal polynomial is

$x^{4} - 13x^{3} - 129x^{2} + 698x + 2350$

Atkin–Lehner signs

$p$	$w_p$
2	$-1$
47	$-1$

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 even 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
$\operatorname{tr} a_p$	8	3	10	37	66	2	−77	40	84	94	−258	−207	−116	−126	188	−31	−83	641	594	285	−66	1273	3372	953	−373

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

Provenance

Stored in the atlas: computed by Sagebrush's modular symbols engine in 0.106 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, 47, 94]: [1, 2, 13, 38] (certified at ell = 2147483137)
T = [(3, 1), (5, 1)]; h of degree 12 = 1 x 12 (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(94, 4)[3]   # 94.4.a.d

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

cargo run --release -p sagebrush-web --example atlas -- 94:4 1000