Degenerate tiling incidence conjecture over division rings
Degenerate tiling incidence conjecture over division rings
Let be a simple tiling of a surface of positive genus, meaning that its underlying graph is -degenerate, and let be a division ring. The incidence theorem corresponding to is an incidence statement in projective space . Degenerate tiling incidence conjecture. The incidence theorem corresponding to holds in if and only if is commutative. This would extend the preceding argument from the specific tiling considered there to all simple -degenerate tilings of positive-genus surfaces; combined with bounds on the degeneracy of graphs embeddable in a fixed genus, it would imply corresponding dimension thresholds for all simple tilings of a fixed positive genus.
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Sources & referencesView supporting material
Primary source
Anton Izosimov, “Surface topology and incidence theorems over division rings”, arXiv:2603.00288 (2026).
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