Timeline for Can we trap light in a polygonal room?
Current License: CC BY-SA 3.0
12 events
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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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| S May 17, 2016 at 13:47 | history | bounty ended | CommunityBot | ||
| S May 17, 2016 at 13:47 | history | notice removed | CommunityBot | ||
| May 16, 2016 at 13:46 | comment | added | Joseph O'Rourke | Here is a suggestion on why it is likely impossible to trap a ray with segment mirrors. The ray cannot be trapped into a periodic path. So it must be trapped aperiodically. There must be some "transparent" finite-length entry window through which the ray arrives from infinity (say, on the hull of the mirrors). After entrance, that entry window must be avoided. But billiard flow in this circumstance is volume-preserving, so Poincare's recurrence theorem says that entry window will be revisited. This is not a proof, just a suggestion why the answer is likely No. | |
| May 9, 2016 at 12:37 | history | edited | Wojowu | CC BY-SA 3.0 |
added 507 characters in body
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| May 9, 2016 at 11:59 | history | edited | Wojowu | CC BY-SA 3.0 |
added 479 characters in body
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| S May 9, 2016 at 11:54 | history | bounty started | Wojowu | ||
| S May 9, 2016 at 11:54 | history | notice added | Wojowu | Draw attention | |
| May 2, 2016 at 10:12 | history | edited | Wojowu | CC BY-SA 3.0 |
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| May 1, 2016 at 20:02 | answer | added | Joseph O'Rourke | timeline score: 9 | |
| Apr 30, 2016 at 15:14 | answer | added | Joseph O'Rourke | timeline score: 16 | |
| Apr 30, 2016 at 14:48 | history | asked | Wojowu | CC BY-SA 3.0 |