Timeline for Relations between two particular elements of SL_2(Z)?
Current License: CC BY-SA 2.5
6 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Oct 3 at 0:01 | comment | added | Will Chen | $\Gamma(2)$ is not free - it is a central extension of a free group of rank 2 by $\mathbb{Z}/2$. | |
| Mar 18, 2010 at 21:44 | vote | accept | Peter Samuelson | ||
| Mar 18, 2010 at 19:34 | history | edited | Robin Chapman | CC BY-SA 2.5 |
added 813 characters in body
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| Mar 18, 2010 at 7:36 | history | edited | Robin Chapman | CC BY-SA 2.5 |
extra refrerence
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| Mar 18, 2010 at 7:32 | history | edited | Douglas Zare | CC BY-SA 2.5 |
Typesetting
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| Mar 18, 2010 at 7:26 | history | answered | Robin Chapman | CC BY-SA 2.5 |