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Will Chen's user avatar
Will Chen's user avatar
Will Chen
  • Member for 12 years, 4 months
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  • New York, NY
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I like to think about noncongruence subgroups of SL(2,Z).

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All Questions Answers
Score Newest
question
35
What is a triangle?
Dec 18, 2016
answer
31
The difference between an étale finite group scheme and a finite group
Feb 18, 2015
answer
25
Results from abstract algebra which look wrong (but are true)
Jan 20
question
19
Questions about the "universal elliptic curve" over the affine $j$-line punctured at 0 and 1728
Nov 14, 2014
question
18
Why is Oka's coherence theorem a deep result?
Oct 31, 2017
answer
16
What is the arithmetic fundamental group?
Aug 17, 2016
question
16
Are there any examples of hyperbolic curves over finite fields such that the action of frobenius on its prime-to-$p$ fundamental group is known?
Feb 12, 2017
question
16
do there exist finite simple characteristic quotients of the free group of rank 2?
Aug 21, 2015
answer
15
Is Proposition 2.6 in J. Silverman's book Arithmetic of Elliptic Curves correct?
Aug 8, 2016
answer
13
do there exist finite simple characteristic quotients of the free group of rank 2?
Sep 11
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28
Where can I learn about complex differential forms?
18
Can a basis for a vector space $V$ can be restricted to a basis for any subspace $W$?
16
Intuition in studying splitting and ramification of prime ideals
16
seeing the differential dx/y on an elliptic curve as an element of the sheaf of differentials
16
seeing the differential dx/y on an elliptic curve as an element of the sheaf of differentials

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