Question

Characteristics of a convex set if its boundary is convex

score 112 · Answer 1 · 2026-04-10 03:03:36

112

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Characteristics of a convex set if its boundary is convex

Published on 10 Apr 2026 - 3:03

score 620 · Answer 2 · 2026-04-11 05:08:43

620

Views

Why do we need affine independence in the definition of a simplex?

Published on 11 Apr 2026 - 5:08

score 43 · Answer 3 · 2026-04-13 15:51:19

43

Views

problem 4 in Alan Pollak and Guillmin differential topology.

Published on 13 Apr 2026 - 15:51

score 157 · Answer 4 · 2026-04-11 01:48:22

157

Views

Understanding the closure operation in the topology generated by $\{(a,\infty),a \in \mathbb{R}\}$

Published on 11 Apr 2026 - 1:48

score 92 · Answer 5 · 2026-04-13 18:55:54

92

Views

Order types in $\{1,2\}\times \mathbb{N}$ and $\mathbb{N}\times \mathbb{N}$

Published on 13 Apr 2026 - 18:55

score 162 · Answer 6 · 2026-04-14 18:36:38

162

Views

Segre Map induces Cohomology Morphisms

Published on 14 Apr 2026 - 18:36

score 43 · Answer 7 · 2026-04-16 01:53:39

43

Views

Does $\{x \in \mathcal X:x>a \land x<b+1 \}$ give $(a,b+1)$ or $(a,b]$?

Published on 16 Apr 2026 - 1:53

score 520 · Answer 8 · 2026-04-09 15:06:15

520

Views

Closure/Interior Operator Definition

Published on 09 Apr 2026 - 15:06

score 66 · Answer 9 · 2026-04-13 18:54:34

66

Views

Disjoint union topology and $f: Z \to A$ surjective fuction

Published on 13 Apr 2026 - 18:54

score 2.8k · Answer 10 · 2026-04-12 15:51:16

2.8k

Views

A continuous bijection between two complete metric spaces that is not a homeomorphism.

Published on 12 Apr 2026 - 15:51

score 161 · Answer 11 · 2026-04-16 15:55:01

161

Views

All Lie subgroups of $\mathbb{R}$

Published on 16 Apr 2026 - 15:55

score 2.4k · Answer 12 · 2026-04-14 17:24:51

2.4k

Views

Continuity preserves connectedness

Published on 14 Apr 2026 - 17:24

score 604 · Answer 13 · 2026-04-14 19:22:02

604

Views

Prob. 10 (a), Sec. 26, in Munkres' TOPOLOGY, 2nd ed: A Partial Converse To The Uniform Limit Theorem

Published on 14 Apr 2026 - 19:22

score 887 · Answer 14 · 2026-03-25 23:36:00

887

Views

Does there exist a continuous bijection from real line onto the unit circle?

Published on 25 Mar 2026 - 23:36

score 91 · Answer 15 · 2026-04-17 03:28:23

Let $A$ and $B$ be subsets of $X$ and define $d(A, B) = \inf\{d(a, B) | a ∈ A\}.$ Then $ \ d(A, B) = \ d(B, A)$ .True/false

List Question

Characteristics of a convex set if its boundary is convex

Why do we need affine independence in the definition of a simplex?

problem 4 in Alan Pollak and Guillmin differential topology.

Understanding the closure operation in the topology generated by $\{(a,\infty),a \in \mathbb{R}\}$

Order types in $\{1,2\}\times \mathbb{N}$ and $\mathbb{N}\times \mathbb{N}$

Segre Map induces Cohomology Morphisms

Does $\{x \in \mathcal X:x>a \land x<b+1 \}$ give $(a,b+1)$ or $(a,b]$?

Closure/Interior Operator Definition

Disjoint union topology and $f: Z \to A$ surjective fuction

A continuous bijection between two complete metric spaces that is not a homeomorphism.

All Lie subgroups of $\mathbb{R}$

Continuity preserves connectedness

Prob. 10 (a), Sec. 26, in Munkres' TOPOLOGY, 2nd ed: A Partial Converse To The Uniform Limit Theorem

Does there exist a continuous bijection from real line onto the unit circle?

Let $A$ and $B$ be subsets of $X$ and define $d(A, B) = \inf\{d(a, B) | a ∈ A\}.$ Then $ \ d(A, B) = \ d(B, A)$ .True/false

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