Mathematics
Charles Siegel's user avatar
Charles Siegel's user avatar
Charles Siegel's user avatar
Charles Siegel
  • Member for 13 years, 4 months
  • Last seen more than 8 years ago
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I'm a math grad student at UPenn.

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All Questions Answers
Score Newest
answer
101
Studying Euclidean geometry using hyperbolic criteria
Aug 2, 2010
answer
21
How many cubic curves are there?
Dec 20, 2010
answer
11
Intuitive explanations for the concepts of divisor and genus
Aug 5, 2010
answer
9
Is there a general formula for solving Quartic (Degree $4$) equations?
Jul 27, 2010
answer
7
Cotangent bundle
Jul 28, 2010
question
5
Natural description of fibers of blowup of projective space along a subspace
May 13, 2011
question
4
Branch locus of a projection
Jan 30, 2011
question
4
When is an affine bundle trivial?
Mar 17, 2011
answer
4
Why does the discriminant of an integral polynomial have integral coefficients?
Jul 27, 2010
answer
4
Cohomology of line bundles on the blowup of $\mathbb P^2$
Aug 17, 2010
Top network posts
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140
Fundamental Examples
74
A learning roadmap for Representation Theory
69
Video lectures of mathematics courses available online for free
45
Consequences of Geometric Langlands
41
A learning roadmap for algebraic geometry

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