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Jun 22, 2022 at 8:13 history edited CommunityBot
replaced http://math.uga.edu/~pete with http://alpha.math.uga.edu/~pete
Feb 17, 2011 at 20:16 vote accept Esteban Crespi
Feb 17, 2011 at 6:55 comment added Pete L. Clark @Esteban: yes, I have done so. (These links may go down every once in a while, but I promise I will notice and rectify the situation within a day at the latest.)
Feb 17, 2011 at 6:52 comment added Esteban Crespi @Pete, thanks for your answer but the link doesn't work. Can you fix it?
Feb 17, 2011 at 4:10 comment added Pete L. Clark @Aaron: good question. Off the top of my head, I think I don't know: the proof I give does seem to give an algorithm to produce the GCD but does not seem to give an algorithm to express it as a linear combination of $a$ and $b$. Absent some kind of Euclidean property I can't think of what to do -- and it is not clear to me at the moment that there is some kind of Euclidean property here (the person to ask would be Franz Lemmermeyer).
Feb 17, 2011 at 3:57 comment added Aaron Meyerowitz Once one has a linear combination which is a common divisor, that is indubitably a greatest common divisor. Is there a reasonable algorithm which will produce such a linear combination? Perhaps one needs to appeal to theory to prove that the algorithm will always succeed.
Feb 16, 2011 at 23:32 history answered Pete L. Clark CC BY-SA 2.5