Counterexample CE-DS-NONCENTERED-POPULATION-CUT-UNSTABLE-001

What it falsifies

The literal labels induced by an isolated nondegenerate population Ds rule are automatically exact one-point exchange-stable on every finite sample. FALSE: on this support-minimal movable N=4 sample from the named off-(L) law, one boundary-scale relocation raises the exact profiled value by 37/14608. The population-to-empirical theorem must select finite global optima or otherwise control exact moves; it cannot identify the raw population-cut labels with a terminal state.

CE-DS-NONCENTERED-POPULATION-CUT-UNSTABLE-001: labels before, 4 atoms in 3 cells-101-0.50000.500score 1score 2
Labels before
CE-DS-NONCENTERED-POPULATION-CUT-UNSTABLE-001: labels after / optimum, 4 atoms in 3 cells-101-0.50000.500score 1score 2
Labels after / optimum
  • Cell 0
  • Cell 1
  • Cell 2
Atoms of CE-DS-NONCENTERED-POPULATION-CUT-UNSTABLE-001
AtomWeightScore 1Score 2Cell beforeCell after
11/4-3/4-5/1600
21/4-1/4-25/1611
31/41/43/1612
41/43/427/1622

Objective

The criterion value at each labelling, exactly as the fixture certifies it.

LabellingObjective
Labels before363/2656
Labels after49/352

How it was verified

Method: exhaustive.

Pure fractions.Fraction recomputation; all six canonical nonempty K=3 partitions and every admissible move checked by agenticresearch/py/ds_noncentered_global_basin.py and pinned in tests/test_research_claims.py.

Claims that cite it

Recorded 31 August 2026. The fixture as JSON.