Atlas › Modular forms › Weight 2 › Level 325 › 325.2.a › 325.2.a.k

Newform orbit 325.2.a.k

Trace form

The 3 newforms in this orbit are conjugate over $\mathbb{Q}$ ; the sum of their $q$ -expansions is

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

Coefficient field

The coefficients $a_n$ generate a number field of degree 3. It is generated by the eigenvalue $\alpha$ of $T = T_{2} + 3T_{3}$ , whose minimal polynomial is

$x^{3} - 15x^{2} + 47x - 37$

Atkin–Lehner signs

$p$	$w_p$
5	— ( $5^2 \mid 325$ )
13	$+1$

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
$\operatorname{tr} a_p$	3	4	0	2	−6	−3	6	0	14	6	−10	0	−4	6	10	8	−8	6	10	−12	−24	−16	22	10	−14

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

Provenance

Stored in the atlas: computed by Sagebrush's modular symbols engine in 0.375 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, 5, 13, 25, 65, 325]: [0, 1, 1, 3, 8, 36] (certified at ell = 2147482921)
T = [(2, 1), (3, 3)]; h of degree 19 = 1 x 19 (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(325, 2)[10]   # 325.2.a.k

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

cargo run --release -p sagebrush-web --example atlas -- 325:2 1000