ScalingStacks

Proposition 3.9 . [02KI]

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Proposition 3.9.

Let Π\Pi be a complete polyhedral complex in NℝN_{\mathbb{R}}. Then rec⁡(Π)\operatorname{rec}(\Pi) and c⁡(Π)\operatorname{c}(\Pi) are complete conic polyhedral complexes in NℝN_{\mathbb{R}} and Nℝ×ℝ≥0N_{\mathbb{R}}\times\mathbb{R}_{\geq 0}, respectively. If, in addition, Π\Pi is strongly convex, then both rec⁡(Π)\operatorname{rec}(\Pi) and c⁡(Π)\operatorname{c}(\Pi) are fans.

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