🌿 Sagebrush Atlas
Atlas β€Ί Modular forms β€Ί Weight 2 β€Ί Level 470 β€Ί 470.2.a β€Ί 470.2.a.j

Newform orbit 470.2.a.j

Trace form

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

3q+3q2+3q3+3q4βˆ’3q5+3q6+3q8+10q9βˆ’3q10+5q11+3q12βˆ’3q15+3q16βˆ’2q17+10q18+9q19βˆ’3q20+5q22βˆ’11q23+3q24+O(q25)3q + 3q^{2} + 3q^{3} + 3q^{4} - 3q^{5} + 3q^{6} + 3q^{8} + 10q^{9} - 3q^{10} + 5q^{11} + 3q^{12} - 3q^{15} + 3q^{16} - 2q^{17} + 10q^{18} + 9q^{19} - 3q^{20} + 5q^{22} - 11q^{23} + 3q^{24} + O(q^{25})

Coefficient field

The coefficients ana_n generate a number field of degree 3. It is generated by the eigenvalue Ξ±\alpha of T=T3+2T7+3T11+4T13+5T17+6T19+7T23+8T29T = T_{3} + 2T_{7} + 3T_{11} + 4T_{13} + 5T_{17} + 6T_{19} + 7T_{23} + 8T_{29}, whose minimal polynomial is

x3+39x2βˆ’1899x+4478x^{3} + 39x^{2} - 1899x + 4478

Atkin–Lehner signs

ppwpw_p
2βˆ’1-1
5+1+1
47+1+1

For pβˆ₯Np \parallel N every form in the orbit has ap=βˆ’pk/2βˆ’1wpa_p = -p^{k/2-1} w_p. The Fricke sign is wN=βˆ’1w_N = -1, so the sign of the functional equation is (βˆ’1)k/2wN=+1(-1)^{k/2} w_N = +1: each L-function in the orbit has even analytic rank.

Traces of Hecke eigenvalues

pp2357111317192329313741434753596167717379838997
tr⁑ap\operatorname{tr} a_p33βˆ’3050βˆ’29βˆ’11βˆ’32βˆ’5140βˆ’3βˆ’17βˆ’4104βˆ’12325βˆ’19536

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

Provenance

Stored in the atlas: computed by Sagebrush's modular symbols engine in 0.44 s (one thread) and proven: the dimensions are certified, and the characteristic polynomial of TT over Z\mathbb{Z} is reconstructed by CRT past a rigorous coefficient bound. The label, dimension and tr⁑ap\operatorname{tr} a_p for every p<1000p < 1000 equal LMFDB's.

The engine's checks
  • dim M^+ at levels [1, 2, 5, 10, 47, 94, 235, 470]: [0, 1, 1, 3, 5, 14, 26, 76] (certified at ell = 2147483137)
  • T = [(3, 1), (7, 2), (11, 3), (13, 4), (17, 5), (19, 6), (23, 7), (29, 8)]; h of degree 17 = 1 x 17 (phi(ord eps) x dim S_k^new); 5 primes, 0 rejected
Open in the notebook Β· JSON Β· stored data
Recompute it yourself

In Sage mode at sagebrush.space (or npx sagebrush --sage):

newform_orbits(470, 2)[9]   # 470.2.a.j

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

cargo run --release -p sagebrush-web --example atlas -- 470:2 1000