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Seewoo Lee
  • Member for 5 years, 11 months
  • Last seen more than a week ago
  • South Korea
330 votes
30 answers
64k views

Geometric interpretation of trace

  • 4,716
265 votes
45 answers
104k views

Examples of unexpected mathematical images

223 votes
9 answers
36k views

If $f$ is infinitely differentiable then $f$ coincides with a polynomial

  • 4,575
223 votes
16 answers
53k views

What elementary problems can you solve with schemes?

202 votes
8 answers
29k views

How to memorise (understand) Nakayama's lemma and its corollaries?

  • 13.3k
198 votes
21 answers
38k views

What is torsion in differential geometry intuitively?

  • 12.2k
172 votes
123 answers
57k views

Most memorable titles

  • 27.8k
147 votes
7 answers
62k views

Consequences of the Riemann hypothesis

141 votes
10 answers
16k views

Why are flat morphisms "flat?"

132 votes
14 answers
27k views

Careers advice for Ph.D.s without current postdocs or university jobs

  • 1,850
126 votes
13 answers
27k views

Why are modular forms interesting?

  • 21.6k
117 votes
23 answers
27k views

Collection of equivalent forms of Riemann Hypothesis

  • 6,725
108 votes
19 answers
39k views

What is the definition of "canonical"?

106 votes
22 answers
33k views

What's the "best" proof of quadratic reciprocity?

  • 41.5k
104 votes
8 answers
14k views

What do heat kernels have to do with the Riemann-Roch theorem and the Gauss-Bonnet theorem?

102 votes
4 answers
17k views

Is the series $\sum_n|\sin n|^n/n$ convergent?

81 votes
4 answers
13k views

Etale cohomology -- Why study it?

  • 2,699
78 votes
1 answer
5k views

The topology of Arithmetic Progressions of primes

  • 14.7k
67 votes
3 answers
3k views

Is there a 0-1 law for the theory of groups?

  • 2,331
64 votes
1 answer
10k views

Why is the Eisenstein ideal paper so great?

62 votes
2 answers
5k views

Non-abelian class field theory and fundamental groups

  • 13.1k
59 votes
3 answers
4k views

Operations via Morse Theory

53 votes
14 answers
16k views

Fantastic properties of Z/2Z

48 votes
3 answers
6k views

What is the purpose of the flat/fppf/fpqc topologies?

  • 6,102
46 votes
2 answers
3k views

Which philosophy for reductive groups?

45 votes
3 answers
5k views

Putnam 2020 inequality for complex numbers in the unit circle

44 votes
2 answers
3k views

Langlands in dimension 2: the Yoshida conjecture

  • 1,664
41 votes
2 answers
6k views

Why is Class Field Theory the same as Langlands for GL_1?

41 votes
3 answers
4k views

From Zeta Functions to Curves

40 votes
2 answers
14k views

Introductory text on Galois representations

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