Timeline for Can every $\mathbb{Z}^2$ disk be pinball-reached?
Current License: CC BY-SA 3.0
11 events
| when toggle format | what | by | license | comment | |
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| Aug 5, 2017 at 11:55 | history | edited | Joseph O'Rourke | CC BY-SA 3.0 |
Image link broken; now fixed.
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| Apr 13, 2017 at 12:58 | history | edited | CommunityBot |
replaced http://mathoverflow.net/ with https://mathoverflow.net/
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| May 4, 2015 at 16:24 | comment | added | Ian Agol | It seems that you're searching for something like "Sinai billiards". | |
| May 2, 2015 at 13:26 | answer | added | Joseph O'Rourke | timeline score: 3 | |
| Apr 28, 2013 at 0:20 | answer | added | Joseph O'Rourke | timeline score: 5 | |
| Apr 27, 2013 at 15:03 | answer | added | Cristi Stoica | timeline score: 24 | |
| Apr 20, 2013 at 9:19 | answer | added | Douglas Zare | timeline score: 22 | |
| Apr 20, 2013 at 1:53 | answer | added | Gerhard Paseman | timeline score: 3 | |
| Apr 20, 2013 at 1:26 | comment | added | Joseph O'Rourke | @Joel: Good question! It seems the most natural assumption is that the ray continues beyond the tangency along the same trajectory. That accords with angle of incidence = angle of reflection. | |
| Apr 20, 2013 at 1:14 | comment | added | JRN | Does it matter what happens to a ray that hits a disk tangentially? | |
| Apr 20, 2013 at 1:03 | history | asked | Joseph O'Rourke | CC BY-SA 3.0 |