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ε-δ's user avatar
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ε-δ
  • Member for 12 years, 3 months
  • Last seen more than 4 years ago
52 votes
1 answer
5k views

Open map D⁴ → S²

21 votes
5 answers
14k views

Pushforward and pullback.

21 votes
5 answers
23k views

What is the standard notation for group action

21 votes
12 answers
16k views

A book in topology

17 votes
3 answers
3k views

Nonseparable example in dimension theory?

11 votes
2 answers
813 views

Helly theorem + Nerve

11 votes
2 answers
693 views

Isoperimetric inequality in complex hyperbolic space

11 votes
0 answers
454 views

The cones for Bochner–Lichnerowicz–Weitzenböck formula

10 votes
1 answer
1k views

Solution of linear ODE

9 votes
5 answers
2k views

A survey on positive mass theorem?

9 votes
3 answers
2k views

Approximation by locally Lipschitz functions

8 votes
3 answers
629 views

Any PL-homology-manifold is homotopy equivalent to a manifold

7 votes
1 answer
519 views

Continuous extensions reals and to p-adic numbers

6 votes
4 answers
2k views

notation for finite sequence with one element is removed [closed]

6 votes
2 answers
776 views

A dual theory to the theory of currents?

6 votes
3 answers
340 views

Visualizing a graph

5 votes
1 answer
377 views

Negative pinching and Ricci flow

4 votes
1 answer
764 views

Example in dimension theory

4 votes
1 answer
772 views

Topological dimension, is it local?

2 votes
3 answers
2k views

Mid point with set square?

2 votes
1 answer
312 views

Ricci-invariant class of metrics