Research notes on every problem, and a library of the papers behind them. Built from the open erdos repository.
Updated
Evidence
The entry point runs every retained probe under util/ in its
own interpreter, fails when any probe exits nonzero, and then checks the
Eisenstein-grid enumeration's written results against the table on the
motif note. It uses the root Python environment
and the shared failure harness, reads no input files, and writes only the
enumeration's JSON under ignored output/. Run it from the repository
root:
uv run --no-sync python wiki/research/erdos_132/evidence/main.pyutil/continuation_checks.py performs
bounded exact checks of the thirteen-point hexagram spectrum, the six-point
invariant-shell obstruction, and the deletion-critical meanders at
. The general arguments and exact scope are in
small orders, dyadic distances,
and deletion criticality. It is not a search
or an independent reproduction of the published six-distance
classification.
util/valuation_counterexample.py
enumerates all 15 unordered pairs of the stated six-point
Eisenstein-coordinate configuration and checks its complete spectrum. Four
distances are rare; the failed claim concerns only the maximum distance
within one valuation level. The same certificate includes the exactly
checked nine-point example with both odd-shell extremes rich, and the
five-point rational Eisenstein example with only three residue classes and
a rich odd-shell maximum. Their spectra and the precise failed claims are
recorded in dyadic distances.
util/split_class_example.py checks the
rigid example of the split-class note for
in exact arithmetic over : the unit
class is the only class whose pairs have unequal absolute horizontal
displacements, the unit triangle gives two independent equal-length tensors,
and the exact rare count is at least . The general bound and the
circle-occupancy estimate are proved in the note and its claim, not computed.
This probe can also be run alone from the repository root:
uv run --no-sync python wiki/research/erdos_132/evidence/util/split_class_example.pyutil/mixed_valuation_selector.py
checks the six-point mixed-valuation obstruction of the
selector note in exact rational
arithmetic.
util/eisenstein_grid.py enumerates all
nonempty subsets of the 4-by-4 Eisenstein grid in integer arithmetic and
writes its results to output/eisenstein_grid_results.json; the entry
point compares the minima and minimizer counts with the motif note's
table. The motif note states the finite
conclusions and proves the reduction used to rule out one-point
extensions of its eleven-point example.
util/c3_hex_candidates_exact.py belongs to
the unreviewed rotational report and needs
SymPy. It concerns only one finite algebraic subcase and does not certify that
report's other reductions. It is not evidence of a solution to either
unrestricted question.