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Geometry & Topology Seminar (2/2)

Friday, October 2, 2026
4:10pm to 5:10pm
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Linde Hall 387
Shortest Filling Geodesics on Hyperbolic Surfaces
Zhongzi Wang, School of Mathematical Sciences, Peking University,

We proved that for any filling set of closed geodesics 𝛾1,…,π›Ύπ‘š on on any closed orientable hyperbolic surface 𝑋, the total length 𝐿 =βˆ‘π‘šπ‘–=1ℓ𝛾𝑖⁑(𝑋) is at least the half of the perimeter of the hyperbolic regular right-angled polygon with 8⁒𝑔 βˆ’4 edges. This lower bound is attained if and only if the complement of βˆͺπ‘šπ‘–=1𝛾𝑖 in 𝑋 is a hyperbolic regular right-angled polygon with 8⁒𝑔 βˆ’4 edges. This is a joint work with Yue Gao and Jiajun Wang.

For more information, please contact the Mathematics Department by email at [email protected].