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Figure 21.13.13`85FCE3A7A731`

Mathematical diagram from the source — 85FCE3A7A73121.13.13 The fan $\Sigma $ of $\mathbb {P}^2$. The three rays $\sigma _4,\sigma _5,\sigma _6\in \Sigma (1)$ subdivide $N_{\mathbb {R}}$ into three full-dimensional cones $\sigma _1,\sigma _2,\sigma _3\in \Sigma (2)$; the origin is the unique cone of dimension zero.

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@misc{pome-tag-85FCE3A7A731,
  author = {{Pome contributors}},
  title = {Figure 21.13.13},
  howpublished = {Pome},
  url = {https://mingchenxia.github.io/Pome/tag/85FCE3A7A731/}
}

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