files / problems / hilbert16-limit-cycles / compute / q2 / README.md

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q2 — twenty-five ideas, five lines backwards

Imagined end-states, then work backwards. No published H(n) moved.

The twenty-five claims and the ranking live in ideas.md. Five lines were scored and assigned:

Line Imagined claim Outcome
f-homogeneous/ homogeneous field with n isolated cycles dropped; fork: unperturbed homogeneous and quasi-homogeneous centers have 0 isolated cycles
i-lienard/ beat 2608.17773 B(n), or prove H(3,1)=1 dropped; fork: B(n) arithmetic replayed; ẋ=y−(αx+βx³), ẏ=−x has 0 or 1 cycle
o-iterated-squaring/ iterated complex-squaring beats the quadratic ceiling dropped; fork: z↦z² is 2-to-1, linear in N; Bézout ceiling still quadratic
p-harnack-recurrence/ Gasull–Santana H(n)+Har(m) beats a table entry dropped; 1225 pairs, no beat; H_K(5)≥28 already on 2510.11705
q-pt-darboux/ PT H_{4,5} field plus one Hopf, H(4)≥29 dropped; fork: explicit degree-4 Darboux seed with 3 centers; Coppel contact identities

Replay:

./run_all.sh

That also runs from the problem compute folder after q1. Exit 0.

Certificates: f-homogeneous/certs/, i-lienard/certs/, o-iterated-squaring/certs/, p-harnack-recurrence/certs/, q-pt-darboux/certs/. Second language: rustc on every line.