6,720 reputation
11039
bio website math.upenn.edu/~frankelb
location Philadelphia, PA
age
visits member for 2 years, 8 months
seen 18 hours ago

I'm currently (fall 2013) a third year graduate student at the University of Pennsylvania. My thesis, still in its infancy, concerns maps from fundamental groups of complete curves over fields of positive characteristic into linear groups.


Sep
6
answered Degree of the field extension.
Sep
3
revised Where can I learn about Mathematical Philosophy?
edited tags
Aug
21
revised Replacing the “if $x ≤ y$, then $x + z ≤ y + z$” axiom in Reals.
added 17 characters in body; edited title
Aug
21
answered When can an infinite sum and complex integral be interchanged?
Aug
21
answered Infinite spaces in which all subsets are compact are not Hausdorff
Aug
20
answered Why this order is well-defined?
Aug
12
awarded  Popular Question
Jul
20
reviewed Reject suggested edit on How to $\int_{0}^\infty {\sin^3(x)\over x}dx$
Jul
2
awarded  Curious
Jun
27
revised Prove: If H and G/H are totally disconnected then G is also totally disconnected
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Jun
27
comment Prove: If H and G/H are totally disconnected then G is also totally disconnected
It's implied here that $H$ is a closed subgroup. Otherwise the quotient map $q$ would not be continuous.
May
27
answered Existence of a one-to-one function (injection) from one finite set to another
May
21
revised $R[[x]]$ for a Noetherian ring $R$?
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May
21
comment $R[[x]]$ for a Noetherian ring $R$?
@TheSubstitute The ascending chain $I_i$ is given.
May
20
revised What is the dot product of two or three vectors graphically or visually?
added 450 characters in body
May
15
revised What is the dot product of two or three vectors graphically or visually?
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May
15
answered What is the dot product of two or three vectors graphically or visually?
May
15
reviewed Reviewed Can you give me some concrete examples of magmas?
May
15
reviewed No Action Needed -1-curves on a nonrational surface.
May
14
reviewed No Action Needed Hermitian and Diagonal Matrix Norm inequality