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visits member for 3 years, 6 months
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Jun
26
answered Important papers in arithmetic geometry and number theory
Jun
8
awarded  Constituent
Jun
8
awarded  Caucus
May
22
awarded  Nice Answer
May
22
answered What is the larger of the two numbers?
May
20
comment Confused about Wikipedia page on differential forms
Yes, that's correct.
May
17
answered Confused about Wikipedia page on differential forms
May
12
awarded  Yearling
Nov
5
accepted $H^1(G,A)$ is killed by $|G|$ : Proof on the level of cocycles
Nov
5
asked $H^1(G,A)$ is killed by $|G|$ : Proof on the level of cocycles
Aug
26
accepted Root of Unity Product
Aug
26
comment Root of Unity Product
Well, I feel dumb. Thanks, anon!
Aug
26
comment Root of Unity Product
Hi anon, thanks for your response. I've certainly been led already to consider this polynomial, since this is what pops out when you factor out the appropriate number of $\zeta_i^a$ (which helpfully leaves $\zeta_j^a$ on the outside), but I'm still unsure how to proceed. I'll keep working on it, though.
Aug
26
asked Root of Unity Product
Jul
14
comment Geometry or topology behind the “impossible staircase”
+1 Very interesting.
Jul
13
comment Problem with Equivalence Relations
I'm not sure I understand your proof of symmetry. The point is that if $(x,y) \in S'$, so that $x-y = n$ is an integer, then $y-x=-n$ is an integer, so $(y,x) \in S'$. This shows symmetry. A similar comment can be made for transitivity.
Jun
10
answered Weierstrass Form of Elliptic Curve
Jun
10
answered Which one result in mathematics has surprised you the most?
Jun
10
comment Do any non-combinatorial proofs of the elementary properties of wedge products exist?
This is how John Lee does it in "Introduction to Smooth Manifolds", the book I learned from, and I think this method is very transparent. +1
Jun
8
comment Intuition behind elliptic curves and $K$-rational points
Exactly! =D A nice elliptic curve has lots of points in general...if you look at the points over $\mathbf{C}$, they form a torus, in fact, and the points on this torus have a group structure. But if we look only at points over $\mathbf{Q}$, we get a subgroup with far fewer points, and in fact the M-W theorem tells us that this subgroup is finitely generated.