Atlas › Modular forms › Weight 2 › Level 933 › 933.2.a › 933.2.a.d

Newform orbit 933.2.a.d

Trace form

The 10 newforms in this orbit are conjugate over $\mathbb{Q}$ ; the sum of their $q$ -expansions is

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

Coefficient field

The coefficients $a_n$ generate a number field of degree 10. It is generated by the eigenvalue $\alpha$ of $T = T_{2} + T_{5}$ , whose minimal polynomial is

$x^{10} + 3x^{9} - 24x^{8} - 75x^{7} + 121x^{6} + 500x^{5} + 234x^{4} - 292x^{3} - 114x^{2} + 74x - 7$

Atkin–Lehner signs

$p$	$w_p$
3	$+1$
311	$+1$

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
$\operatorname{tr} a_p$	−1	−10	−2	−10	−4	−13	0	−25	1	14	−6	−11	13	−45	−6	−6	−19	−46	−17	−3	−23	−11	−49	22	−7

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

Provenance

Stored in the atlas: computed by Sagebrush's modular symbols engine in 0.275 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, 311, 933]: [0, 1, 27, 106] (certified at ell = 2147479121)
T = [(2, 1), (5, 1)]; h of degree 51 = 1 x 51 (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(933, 2)[3]   # 933.2.a.d

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

cargo run --release -p sagebrush-web --example atlas -- 933:2 1000