On the number of optimal surfaces
On the number of optimal surfaces
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关于最佳曲面的数量
DOI:
10.2140/gtm.2008.14.557
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发表时间:
2009
期刊:
影响因子:
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通讯作者:
A. Vdovina
中科院分区:
文献类型:
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作者:
A. Vdovina
Let X be a closed oriented Riemann surface of genus 2 of constant negative curvature 1. A surface containing a disk of maximal radius is an optimal surface. This paper gives exact formulae for the number of optimal surfaces of genus 4 up to orientation-preserving isometry. We show that the automorphism group of such a surface is always cyclic of order 1, 2, 3 or 6. We also describe a combinatorial structure of nonorientable hyperbolic optimal surfaces.