Add flip-symmetry paper with empirical density census through n=14

Introduces the maximal_planar_graph_edge_flipping paper, motivating
flip-symmetry as a structural restriction on minimum-order
five-chromatic counterexamples, and reports an exhaustive census
showing |F_n|/|T_n| decays geometrically (factor ~1/2 per step from
n=10 to n=14). The census driver lives in flip_symmetric_census.py.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
This commit is contained in:
2026-05-13 23:56:38 -04:00
parent 256cbbf90a
commit 1749f702cf
7 changed files with 1436 additions and 0 deletions
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