Add Heawood chain-pigeonhole programme to tire-dual paper

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Define a +/-1 Heawood face-labelling of a tire, its induced boundary
Heawood sequences and restriction relation, and interface compatibility
(0<->0, +1<->-1 = vertex face-sum vanishes mod 3). State the Heawood
chain-pigeonhole conjecture and a tire route to the Four Colour Theorem,
parallel to the medial programme.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

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didericis

2026-06-17 00:45:03 -04:00

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papers/heawood_restrictions_on_nested_tire_graph_duals/paper.pdf

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