files / problems / kissing-5d / compute / q3 / README.md

1.3 KB · on GitHub

q3 — unrestricted dual and exact 41-point hunt

Replay:

sh compute/q3/run_all.sh

The published range is still 40≤τ5≤4440\le\tau_5\le 44. This folder hunts either an exact Gegenbauer dual that is nonpositive on the whole interval [−1,1/2][-1,1/2] and has value <44<44, or an explicit 41-point spherical code.

Script What it does
sphere_types.py extras kiss at most 36 D5D_5 roots; same-missed groups
complete_slices.py complete n1≥33n_1\ge 33 emptiness on the 1480-point graph
union_slices.py generating-set scan of missed-root unions
t5_repair.py edit-distance repairs of the published 35-cliques
t5_36.py assembles the T5T^5 36-clique hunt
clique.c coloured branch-and-bound; t5_36_c.json is the 40M-node run
a4_continuous.py extras over a fixed A4A_4 at height ∥s∥>2\|s\|>2
expand_T.py T5T^5 pools on larger exact angle sets
golden_pool.py D5D_5 plus (φ,1,1/φ,0,0)/2(\varphi,1,1/\varphi,0,0)/\sqrt{2}
dual_gap.py unrestricted and gapped Delsarte; Sturm certification
verify.py replay any dual JSON under certs/ and any claimed 41-set

A numerical SDP that does not become an exact positivity certificate is an incomplete search. The unrestricted range remains 40≤τ5≤4440\le\tau_5\le 44 unless a verifier-plus-certificate pair here says otherwise.