Atlas › Modular forms › Weight 2 › Level 951 › 951.2.a › 951.2.a.c

Newform orbit 951.2.a.c

Trace form

The 7 newforms in this orbit are conjugate over $\mathbb{Q}$ ; the sum of their $q$ -expansions is

$7q - 5q^{2} + 7q^{3} + 5q^{4} - 7q^{5} - 5q^{6} - 4q^{7} - 9q^{8} + 7q^{9} + 3q^{10} - 15q^{11} + 5q^{12} - 4q^{13} - 6q^{14} - 7q^{15} + q^{16} - 15q^{17} - 5q^{18} - 9q^{19} - 10q^{20} - 4q^{21} + 10q^{22} - 13q^{23} - 9q^{24} + O(q^{25})$

Coefficient field

The coefficients $a_n$ generate a number field of degree 7. It is generated by the eigenvalue $\alpha$ of $T = T_{2} + T_{5}$ , whose minimal polynomial is

$x^{7} + 12x^{6} + 42x^{5} + 9x^{4} - 170x^{3} - 184x^{2} + 117x + 169$

Atkin–Lehner signs

$p$	$w_p$
3	$-1$
317	$-1$

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
$\operatorname{tr} a_p$	−5	7	−7	−4	−15	−4	−15	−9	−13	−12	0	−11	−27	4	−17	−5	−8	0	11	−12	−2	9	−30	−24	−11

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

Provenance

Stored in the atlas: computed by Sagebrush's modular symbols engine in 0.277 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 label, dimension and $\operatorname{tr} a_p$ for every $p < 1000$ equal LMFDB's.

The engine's checks

dim M^+ at levels [1, 3, 317, 951]: [0, 1, 27, 108] (certified at ell = 2147479753)
T = [(2, 1), (5, 1)]; h of degree 53 = 1 x 53 (phi(ord eps) x dim S_k^new); 6 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(951, 2)[2]   # 951.2.a.c

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

cargo run --release -p sagebrush-web --example atlas -- 951:2 1000