The tropical halfspace characterization conjecture for pure full-dimensional polytopes

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Let PP be a tropical polytope. A halfspace description of PP is a description as an intersection of tropical halfspaces, and the apex of each halfspace is its distinguished point. The tropical semiring is (R,min⁡,+)\bigl(\mathbb{R},\operatorname{min},+\bigr). Call the apices in general position when they satisfy the source's general-position condition.

Tropical halfspace characterization conjecture. A tropical polytope PP is pure and full dimensional if and only if it has a halfspace description whose apices are in general position with respect to the tropical semiring (R,min⁡,+)\bigl(\mathbb{R},\operatorname{min},+\bigr).

This conjecture proposes an intrinsic halfspace characterization of purity and full dimensionality for tropical polytopes. The supplied text gives no resolution or further evidence.

References

Primary source

Mike Develin and Josephine Yu, “Tropical polytopes and cellular resolutions”, arXiv:math/0605494 (2006).

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