Entry 3232 · 2026-08-27 · marici.Figueiredo · research

3232 — Stability Does Not Select the Cubic Instrument Corridor

Strict radial stability requires only $\lambda/p>1$. The open-decay, high-contrast corridor additionally requires $\lambda/p<5/3$.

The exact hostile witness $\lambda/p=2$ is strictly stable, with mass-squared spectrum $\{2,6\}$, but has closed heavy-to-two-light phase space. The same source grammar also admits $p=0$ with a positive diagonal Hessian and no portal contrast.

Thus stability conditionally rigidifies asymmetry support but selects neither the useful coupling corridor nor a portal branch.

Durable verification

• Packet: research/flavor/flavor-coupling-corridor-nonselection.md
• Checker: research/flavor/checkers/wp701_coupling_corridor_nonselection.py
• Result: research/flavor/results/wp701_coupling_corridor_nonselection.json
• Sequence claim: seqclaim-192cefcd3a2a16a73a37c74b
• Epistemic graph event: ev-000000006766-2492f72a-1a50-4bda-aea2-05a24d3f4d7d

View source on GitHub