Question

Why would surgery theory require $5$ dimensions?

score 283 · Answer 1 · 2026-03-22 21:04:35

283

Views

Why would surgery theory require $5$ dimensions?

Published on 22 Mar 2026 - 21:04

score 187 · Answer 2 · 2018-03-02 06:08:33

187

Views

Understanding proof of, any compact subset of $\mathbb{R_l}$ must be atmost countable

Published on 02 Mar 2018 - 6:08

score 51 · Answer 3 · 2026-03-27 12:03:03

51

Views

Compactness of [1,2] and [1,2).

Published on 27 Mar 2026 - 12:03

score 191 · Answer 4 · 2018-03-02 12:43:41

191

Views

Is the analogy of neighborhood as open ball applicable to arbitrary topological spaces?

Published on 02 Mar 2018 - 12:43

score 1.1k · Answer 5 · 2026-03-30 03:35:32

1.1k

Views

Continuous function between a topological and a metric space

Published on 30 Mar 2026 - 3:35

score 175 · Answer 6 · 2026-03-22 18:27:03

175

Views

For a discrete topological space $X$, is Perm$(X)$ a topological group as a subspace of product topological space $X^X$?

Published on 22 Mar 2026 - 18:27

score 125 · Answer 7 · 2026-03-30 03:39:11

125

Views

Does there exist a function $f$ from $R^2$ to $R$ and constant $c_0>0$ such that for all $x,y\in R^2$, $|f(x)-f(y)| \ge c_0|x-y|^2$?

Published on 30 Mar 2026 - 3:39

score 339 · Answer 8 · 2026-03-26 19:50:44

339

Views

Compact,connected set

Published on 26 Mar 2026 - 19:50

score 820 · Answer 9 · 2026-03-26 19:24:13

820

Views

Name for the volume "inside" a torus?

Published on 26 Mar 2026 - 19:24

score 69 · Answer 10 · 2026-03-25 01:20:35

69

Views

Open subgroup of $\mathrm{Aut}(M) \subseteq M^M$ where $M$ is an $L$-structure for a first order language $L$ and $M$ has discrete topology

Published on 25 Mar 2026 - 1:20

score 366 · Answer 11 · 2026-03-25 06:01:16

366

Views

Constant sheaf takes disconnected set to product

Published on 25 Mar 2026 - 6:01

score 73 · Answer 12 · 2018-03-02 23:05:32

73

Views

Closure of a set defined using a function

Published on 02 Mar 2018 - 23:05

score 1.4k · Answer 13 · 2026-03-25 15:17:52

1.4k

Views

Proving the boundary of a disc is a circle

Published on 25 Mar 2026 - 15:17

score 228 · Answer 14 · 2026-03-25 09:24:04

228

Views

Relations between SU(N) and CP$^n$

Published on 25 Mar 2026 - 9:24

score 353 · Answer 15 · 2026-03-25 15:12:14

353

Views

Connectedness of the Graph of $\frac{1}{x}$ and the $y$-axis

Published on 25 Mar 2026 - 15:12

List Question

Why would surgery theory require $5$ dimensions?

Understanding proof of, any compact subset of $\mathbb{R_l}$ must be atmost countable

Compactness of [1,2] and [1,2).

Is the analogy of neighborhood as open ball applicable to arbitrary topological spaces?

Continuous function between a topological and a metric space

For a discrete topological space $X$, is Perm$(X)$ a topological group as a subspace of product topological space $X^X$?

Does there exist a function $f$ from $R^2$ to $R$ and constant $c_0>0$ such that for all $x,y\in R^2$, $|f(x)-f(y)| \ge c_0|x-y|^2$?

Compact,connected set

Name for the volume "inside" a torus?

Open subgroup of $\mathrm{Aut}(M) \subseteq M^M$ where $M$ is an $L$-structure for a first order language $L$ and $M$ has discrete topology

Constant sheaf takes disconnected set to product

Closure of a set defined using a function

Proving the boundary of a disc is a circle

Relations between SU(N) and CP$^n$

Connectedness of the Graph of $\frac{1}{x}$ and the $y$-axis

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