18 Nov
2016
18 Nov
'16
12:34 p.m.
Correction:
On Nov 18, 2016, at 10:30 AM, Dan Asimov <asimov@msri.org> wrote:
Let O_h be the ring of algebraic integers of ℚ(√-h), Then:
O_1 = Z[i]
O_2 = Z[sqrt(-2)]
O_h = Z[(1 + sqrt(h))/2] for h = -3, -7, -11, -19, -43, -67, -163.
The last line should read: ----- O_h = Z[(1 + sqrt(h))/2] for -h = -3, -7, -11, -19, -43, -67, -163. ----- (and in that e-mail "discover" should be "discoverer". Argggh. —Dan