Atlas › Modular forms › Weight 2 › Level 525 › 525.2.a › 525.2.a.f

Newform orbit 525.2.a.f

Trace form

The 2 newforms in this orbit are conjugate over $\mathbb{Q}$ ; the sum of their $q$ -expansions is

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

Coefficient field

The coefficients $a_n$ generate $\mathbb{Q}(\sqrt{13})$ . It is generated by the eigenvalue $\alpha$ of $T = T_{2} + 3T_{11}$ , whose minimal polynomial is

$x^{2} + 19x + 87$

Atkin–Lehner signs

$p$	$w_p$
3	$+1$
5	— ( $5^2 \mid 525$ )
7	$+1$

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
$\operatorname{tr} a_p$	−1	−2	0	−2	−6	−2	−2	6	−2	−8	0	−6	0	−12	−14	8	−14	12	−24	−6	6	−8	−8	−6	16

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

Provenance

Stored in the atlas: computed by Sagebrush's modular symbols engine in 0.365 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, 5, 7, 15, 21, 25, 35, 75, 105, 175, 525]: [0, 1, 1, 1, 4, 4, 3, 6, 12, 20, 22, 84] (certified at ell = 2147482921)
T = [(2, 1), (11, 3)]; h of degree 20 = 1 x 20 (phi(ord eps) x dim S_k^new); 4 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(525, 2)[5]   # 525.2.a.f

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

cargo run --release -p sagebrush-web --example atlas -- 525:2 1000