Timeline for subsets of products of trees
Current License: CC BY-SA 2.5
9 events
| when toggle format | what | by | license | comment | |
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| Sep 30, 2010 at 11:04 | answer | added | Cornelia | timeline score: 5 | |
| Sep 29, 2010 at 22:20 | vote | accept | CommunityBot | moved from User.Id=6976 by developer User.Id=69903 | |
| Sep 29, 2010 at 22:08 | answer | added | Sergei Ivanov | timeline score: 11 | |
| Sep 29, 2010 at 20:42 | history | edited | user6976 | CC BY-SA 2.5 |
deleted 111 characters in body
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| Sep 29, 2010 at 20:12 | comment | added | user6976 | Anton and Fedor: Yes, of course. Sorry for being so sloppy. I have modified the question. I only need to know if every triangle ABC in the subset contains a "center". It would follow from strong convexity, but, say, a geodesic is not necessarily strongly convex, but satisfies the median property. | |
| Sep 29, 2010 at 20:08 | history | edited | user6976 | CC BY-SA 2.5 |
added 160 characters in body
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| Sep 29, 2010 at 20:06 | comment | added | Fedor Petrov | Consider the set $\{(x,y):\, xy=0, x\geq 0,y\geq 0\}$ (right angle). | |
| Sep 29, 2010 at 19:50 | comment | added | Anton Petrunin | It is not true even for $\mathbb R\times\mathbb R$ with $\ell_1$-metric... | |
| Sep 29, 2010 at 19:22 | history | asked | user6976 | CC BY-SA 2.5 |