Timeline for A Galois Theory Computation
Current License: CC BY-SA 2.5
8 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Apr 9, 2010 at 16:32 | history | edited | Tyler Lawson | CC BY-SA 2.5 |
corrected formula, made it nicer
|
| Jan 19, 2010 at 5:40 | comment | added | Tyler Lawson | Ah, shoot. Yes, 7 is congruent to 1 mod 3. Thanks for the correction. | |
| Jan 5, 2010 at 2:26 | comment | added | Bjorn Poonen | By the way, this covering is the same as the tower of modular curves X(7) --> X_1(7) --> X_0(7). In particular, it can be extended to an even larger tower X(7) --> X(1) with Galois group PSL_2(F_7), in which the upper triangular matrices form the order-21 group. | |
| Jan 5, 2010 at 0:32 | comment | added | H. Hasson | This is a little nitpicky, but you meant that (y-1)(y-w)^2(y-w^2)^4 goes to w(y-w^2)(y-1)^2(y-w)^4. It doesn't detract from the argument, of course. | |
| Jan 4, 2010 at 2:23 | vote | accept | H. Hasson | ||
| Jan 4, 2010 at 2:23 | vote | accept | H. Hasson | ||
| Jan 4, 2010 at 2:23 | |||||
| Jan 4, 2010 at 2:20 | vote | accept | H. Hasson | ||
| Jan 4, 2010 at 2:20 | |||||
| Jan 4, 2010 at 1:15 | history | answered | Tyler Lawson | CC BY-SA 2.5 |