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Dec 7, 2018 at 3:41 comment added Anton Petrunin If you may apply Bing's characterization locally then you get a characterization of a surface. After this you may add something that distinguishes a surface of genus $g$. Say any $g$ disjoint circles separate while there are $g-1$ disjoint circles that do not separate.
Dec 6, 2018 at 17:30 review First posts
Dec 6, 2018 at 17:47
Dec 6, 2018 at 17:26 history asked jon jones CC BY-SA 4.0