848 reputation
111
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location Blacksburg, VA
age 22
visits member for 1 year, 10 months
seen May 15 at 2:18
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I am an undergraduate at Virginia Tech double majoring in math and physics and minoring in computer science.


May
9
awarded  Caucus
Apr
21
revised Trying to extend Vandermonde's formula to the case where m and n are not integers
TeXified everything.
Apr
21
suggested suggested edit on Trying to extend Vandermonde's formula to the case where m and n are not integers
Apr
11
accepted $x \in \left[L,L\right] \Rightarrow tr(ad \, x)=0$
Apr
3
comment $x \in \left[L,L\right] \Rightarrow tr(ad \, x)=0$
Why do we get to assume the Lie bracket is a commutator? Surely there are more general brackets.
Apr
3
asked $x \in \left[L,L\right] \Rightarrow tr(ad \, x)=0$
Jan
16
accepted What topological space do I obtain by gluing these edges?
Jan
12
comment Möbius function sum
$S(2,1;s)=\frac{1}{(1-2^{-s})\zeta(s)}$.
Jan
11
asked What topological space do I obtain by gluing these edges?
Jan
7
awarded  Citizen Patrol
Dec
14
revised Commutative Rings and Ideals
added 2 characters in body
Dec
14
revised Commutative Rings and Ideals
subsets are indeed proper
Dec
14
answered Commutative Rings and Ideals
Dec
12
revised How do I explain 2 to the power of zero equals 1 to a child
Texified the expressions.
Dec
12
suggested suggested edit on How do I explain 2 to the power of zero equals 1 to a child
Dec
12
comment Ideals of norm 2 in $\mathbb{Z}[\zeta_{n}]$
Great answer, thanks!
Dec
12
accepted Ideals of norm 2 in $\mathbb{Z}[\zeta_{n}]$
Dec
12
comment Ideals of norm 2 in $\mathbb{Z}[\zeta_{n}]$
This is a bit over my head as I haven't had a course in ANT yet, but I can more or less follow along. Does all of this imply that 2 being a generator for $(\mathbb{Z}/n\mathbb{Z})^{\times}$ is a necessary condition for $A$ to be an ideal of norm 2 in $\mathbb{Z}[\zeta_{n}]$?
Dec
12
comment Ideals of norm 2 in $\mathbb{Z}[\zeta_{n}]$
I was assuming from the definition of Euclidean domain. The only ones I've read about are the norms on $\mathbb{Z}$, $\mathbb{Z}[i]$, $\mathbb{Z}[\omega]$, and $\mathbb{Z}[\zeta_{5}]$. The norm on $\mathbb{Z}[\zeta_{5}]$ that I linked to is significantly more complicated than the others. The computer program I've written was designed specifically for $\mathbb{Z}[\omega]$ and I already know there are no ideals of index 2 in $\mathbb{Z}[\zeta_{5}]$. I was just wondering if there was a quicker/more general way to answer this rather than brute force computation.
Dec
12
comment Ideals of norm 2 in $\mathbb{Z}[\zeta_{n}]$
Pretty sure. I wrote a Euclidean algorithm to compute remainders in $\mathbb{Z}[\omega]$. One can prove that the the the number of representatives is finite. For a given ideal $(\beta)$ I can compute a list guaranteed to contain every representative. By removing all duplicates from the list ($a-b \in (\beta)$ means $a$ and $b$ are duplicates) I get a list of distinct coset representatives which tells me the index.