User Charles Siegel - MathOverflow

Charles Siegel

Member for 14 years, 6 months
Last seen more than 8 years ago

rigtriv.wordpress.com
Kashiwanoha, Chiba, Japan

167 Answers

Score Activity Newest

142 votes

Famous mathematical quotes

answered Nov 29, 2009 at 20:24

140 votes

Fundamental Examples

answered Nov 11, 2009 at 14:14

82 votes

Famous mathematical quotes

answered Nov 29, 2009 at 22:48

70 votes

Famous mathematical quotes

answered Nov 29, 2009 at 20:23

69 votes

Video lectures of mathematics courses available online for free

answered Feb 5, 2011 at 22:51

59 votes

Famous mathematical quotes

answered Nov 29, 2009 at 22:49

43 votes

Famous mathematical quotes

answered Nov 29, 2009 at 20:23

41 votes

Dimension leaps

answered Nov 13, 2009 at 16:13

41 votes

Accepted

A learning roadmap for algebraic geometry

answered Oct 19, 2009 at 22:39

41 votes

Mathematicians who were late learners?-list

answered Oct 31, 2009 at 21:46

40 votes

Where does a math person go to learn quantum mechanics?

answered Oct 27, 2009 at 23:19

35 votes

Accepted

Example of the completion of a noetherian domain at a prime that is not a domain

answered Mar 17, 2010 at 15:31

34 votes

Accepted

Why is it useful to study vector bundles?

answered Dec 5, 2009 at 5:11

33 votes

Accepted

Motivation for concepts in Algebraic Geometry

answered Jan 20, 2010 at 18:23

30 votes

Geometric meaning of the Euler sequence on $\mathbb{P}^n$ (Example 8.20.1 in Ch II of Hartshorne)

answered Nov 12, 2009 at 18:07

28 votes

What should be offered in undergraduate mathematics that's currently not (or isn't usually)?

answered Nov 3, 2009 at 22:24

28 votes

Accepted

Projective closure of affine curve

answered Dec 10, 2009 at 1:54

28 votes

Accepted

complex structure on S^n

answered Jan 13, 2010 at 16:37

27 votes

What are some examples of colorful language in serious mathematics papers?

answered Apr 23, 2010 at 19:36

26 votes

books well-motivated with explicit examples

answered Dec 6, 2009 at 4:27

25 votes

What is the first interesting theorem in (insert subject here)?

answered Oct 24, 2009 at 20:14

24 votes

Non-commutative algebraic geometry

answered Dec 5, 2009 at 22:58

24 votes

What is the first interesting theorem in (insert subject here)?

answered Nov 5, 2009 at 0:52

22 votes

Accepted

Why do I find Category Theory mostly just a way to make simple things difficult?

answered Oct 24, 2009 at 14:04

20 votes

What is Yoneda's Lemma a generalization of?

answered Jan 21, 2010 at 13:15

17 votes

Accepted

Confusion over a point in basic category theory

answered Feb 19, 2010 at 18:50

16 votes

What should be learned in a first serious schemes course?

answered Jun 17, 2010 at 13:35

16 votes

Looking for an introductory textbook on algebraic geometry for an undergraduate lecture course

answered Feb 6, 2010 at 14:52

15 votes

Accepted

An example of two elements without a greatest common divisor

answered Jan 8, 2010 at 5:23

14 votes

Accepted

Good books on problem solving / math olympiad

answered Dec 30, 2009 at 16:00

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