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Volume of the moduli space of unmarked bounded positive convex $mathbb{RP}^2$ structures

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 نشر من قبل Zhe Sun
 تاريخ النشر 2020
  مجال البحث
والبحث باللغة English
 تأليف Zhe Sun




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For the moduli space of unmarked convex $mathbb{RP}^2$ structures on the surface $S_{g,m}$ with negative Euler characteristic, we investigate the subsets of the moduli space defined by the notions like boundedness of projective invariants, area, Gromov hyperbolicity constant, quasisymmetricity constant etc. These subsets are comparable to each other. We show that the Goldman symplectic volume of the subset with certain projective invariants bounded above by $t$ and fixed boundary simple root lengths $mathbf{L}$ is bounded above by a positive polynomial of $(t,mathbf{L})$ and thus the volume of all the other subsets are finite. We show that the analog of Mumfords compactness theorem holds for the area bounded subset.

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