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Andrea Mori earned this badge 15 times |
apr 27 at 14:11
Quotient ring of Gaussian integers
aug 5 at 20:17
Proofs that every mathematician should know?
aug 2 at 10:52
How to tell $i$ from $-i$?
aug 2 at 2:05
$I\cdot J$ principal implies $I$ and $J$ principal?
jul 31 at 12:34
Subgroups between $S_n$ and $S_{n+1}$
jul 31 at 12:04
How do quaternions represent rotations?
mar 21 '12 at 19:51
Why are the solutions of polynomial equations so unconstrained over the quaternions?
mar 9 '12 at 15:00
Does $R$ have to be a PID for the following theorem to hold?
jan 26 '12 at 9:19
How can one prove that the cube root of 9 is irrational?
jan 21 '12 at 16:06
Given a matrix, is there always another matrix which commutes with it?
dec 10 '11 at 10:32
How fundamental is the fundamental theorem of algebra?
feb 27 '11 at 17:12
Isomorphic of (N,+)?
