Two-dimensional metric spaces with curvature bounded above II
Two-dimensional metric spaces with curvature bounded above II
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曲率上界为 II 的二维度量空间
DOI:
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发表时间:
2023
期刊:
影响因子:
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通讯作者:
T. Yamaguchi
中科院分区:
文献类型:
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作者:
Koichi Nagano;T. Shioya;T. Yamaguchi
As a continuation of \cite{NSY:local}, we mainly discuss the global structure of two-dimensional locally compact geodesically complete metric spaces with curvature bounded above. We first obtain the result on the Lipschitz homotopy approximations of such spaces by polyhedral spaces. We define the curvature measures on our spaces making use of the convergence of the curvature measures, and establish Gauss-Bonnet Theorem. We also give a characterization of such spaces.