Atlas › Modular forms › Weight 2 › Level 359 › 359.2.a › 359.2.a.c

Newform orbit 359.2.a.c

Trace form

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

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

Coefficient field

The coefficients $a_n$ generate a number field of degree 4. It is generated by the eigenvalue $\alpha$ of $T = T_{2} + 3T_{3}$ , whose minimal polynomial is

$x^{4} + 5x^{3} - 36x^{2} - 44x - 8$

Atkin–Lehner signs

$p$	$w_p$
359	$+1$

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
$\operatorname{tr} a_p$	−2	−1	−6	−3	1	−5	1	−13	6	13	−19	−9	−19	6	−6	7	−15	−14	−7	0	−18	21	8	−6	−35

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

Provenance

Stored in the atlas: computed by Sagebrush's modular symbols engine in 0.184 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, 359]: [0, 31] (certified at ell = 2147476963)
T = [(2, 1), (3, 3)]; h of degree 30 = 1 x 30 (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(359, 2)[2]   # 359.2.a.c

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

cargo run --release -p sagebrush-web --example atlas -- 359:2 1000