D. Savitt
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# 22 Actions

 May11 awarded Caucus Dec29 revised Smallest possible value on Fibonacci Function deleted 928 characters in body Dec28 revised Smallest possible value on Fibonacci Function added 15 characters in body Dec28 answered Smallest possible value on Fibonacci Function Dec25 awarded Yearling Dec25 answered One polynomial problem Dec24 answered Elementary proof of a bound on the order of the partition function Dec9 awarded Quorum Aug5 awarded Yearling Oct8 revised $n \mid (a^{n}-b^{n}) \ \Longrightarrow$ $n \mid \frac{a^{n}-b^{n}}{a-b}$ added 56 characters in body Oct8 answered $n \mid (a^{n}-b^{n}) \ \Longrightarrow$ $n \mid \frac{a^{n}-b^{n}}{a-b}$ Aug15 answered Sufficient conditions for ultracharactericity Aug15 comment Sufficient conditions for ultracharactericity @Moron: To leave some time for a more contentful answer that might tell the asker what question he/she ought to be asking instead.... But since this doesn't seem to be forthcoming, I'll go ahead. Aug14 comment Sufficient conditions for ultracharactericity If K is any group, then N = K x {e} is a normal subgroup of G = K x K, with quotient G/N isomorphic to K. But N cannot be ultracharacteristic unless K is trivial, since G/(K x {e}) and G/({e} x K) are isomorphic. So the only condition that references G/N alone and that guarantees N to be ultracharacteristic is "G/N is trivial". Aug9 awarded Supporter Aug9 comment How do you prove that a prime is the sum of two squares iff it is congruent to 1 mod 4? Dear Matt: yes, I agree. The content is there, but (it seems to me) it's hard to see that it's there unless one already knows another argument in some more theoretical context! Aug9 answered What's the name of this set Aug9 awarded Editor Aug9 revised How do you prove that a prime is the sum of two squares iff it is congruent to 1 mod 4? added 136 characters in body Aug9 awarded Teacher