Timeline for Cheap, non-constructive, free group generating rotations for Banach-Tarski
Current License: CC BY-SA 2.5
4 events
| when toggle format | what | by | license | comment | |
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| Dec 15, 2010 at 9:17 | history | edited | Bill Thurston | CC BY-SA 2.5 |
Eliminated one example to correct error noted in comment.
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| Dec 15, 2010 at 9:05 | comment | added | BS. | I doubt that there is a spherical triangle with all angles $2\pi/7$ : they sum to less than $\pi$, right ? | |
| Dec 14, 2010 at 17:43 | history | edited | Bill Thurston | CC BY-SA 2.5 |
Added transcendental example, clarified a bit.
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| Dec 14, 2010 at 14:32 | history | answered | Bill Thurston | CC BY-SA 2.5 |