Trace form
The 24 newforms in this orbit are conjugate over Q; the sum of their q-expansions is
24qβ17q2β8q3+79q4β50q5β14q6β61q7β204q8+66q9β61q10β104q11β163q12β92q13β149q14β224q15+183q16β537q17β442q18β209q19β405q20β416q21β34q22β416q23+47q24+O(q25)
Coefficient field
The coefficients anβ generate a number field of degree 24. It is generated by the eigenvalue Ξ± of T=T2β+T3β, whose minimal polynomial is
x24+25x23β166x22β7851x21β1695x20+1056578x19+2114042x18β80522809x17β184356777x16+3864419084x15+7016026540x14β121917165119x13β113929446191x12+2522800981400x11β188337143952x10β32539471931265x9+34337034410670x8+229592398119321x7β471809749664904x6β569568643687732x5+2293408602086880x4β1219531034801600x3β1755117314824448x2+1632270456201216xβ6729628368896
AtkinβLehner signs
| p | wpβ |
|---|
| 223 | β1 |
For pβ₯N every form in the orbit has apβ=βpk/2β1wpβ. The Fricke sign is wNβ=β1, so the sign of the functional equation is (β1)k/2wNβ=β1: each L-function in the orbit has odd analytic rank.
Traces of Hecke eigenvalues
tranβ for every nβ€1000 is in the JSON.
Provenance
Stored in the atlas: computed by Sagebrush's modular symbols engine in 0.151 s (one thread) and proven: the dimensions are certified, and the characteristic polynomial of T over Z is reconstructed by CRT past a rigorous coefficient bound.
The engine's checks
dim M^+ at levels [1, 223]: [1, 57] (certified at ell = 2147482591)T = [(2, 1), (3, 1)]; h of degree 55 = 1 x 55 (phi(ord eps) x dim S_k^new); 8 primes, 0 rejected
Recompute it yourself
In Sage mode at sagebrush.space (or npx sagebrush --sage):
newform_orbits(223, 4)[0] # 223.4.a.a
With the Rust engine (source), in engine/:
cargo run --release -p sagebrush-web --example atlas -- 223:4 1000