Question

Algebraic Dual and topological dual

score 331 · Answer 1 · 2026-04-10 11:00:28

331

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Algebraic Dual and topological dual

Published on 10 Apr 2026 - 11:00

score 985 · Answer 2 · 2026-04-10 10:33:55

985

Views

weak topology has less open set than strong topology (in Banach spaces). Why?

Published on 10 Apr 2026 - 10:33

score 749 · Answer 3 · 2026-04-12 03:53:10

749

Views

Infinite graph is planar iff it can be embedded in sphere

Published on 12 Apr 2026 - 3:53

score 388 · Answer 4 · 2026-03-25 09:28:18

388

Views

Linear functional $\psi:X \to \mathbb{R}$ is $W$-weakly continuous if and only if it belongs to $W$

Published on 25 Mar 2026 - 9:28

score 391 · Answer 5 · 2018-07-31 17:29:09

induced homeomorphism between $\mathbb R^n$ and $\mathbb R^m$ from the hypothetical existence of a homeomorphism between respective open subsets

score 65 · Answer 6 · 2026-04-09 16:59:34

65

Views

Using sequences to test topological properties for topological manifolds

Published on 09 Apr 2026 - 16:59

score 61 · Answer 7 · 2026-03-25 12:32:38

61

Views

Defining a Neighborhood Around a Point Whose Elements Have Different Units

Published on 25 Mar 2026 - 12:32

score 289 · Answer 8 · 2026-04-08 18:17:44

289

Views

Help with completing proof of cartesian products of two path connected spaces being path connected.

Published on 08 Apr 2026 - 18:17

score 160 · Answer 9 · 2026-04-11 12:50:47

160

Views

An open cover of regular surface

Published on 11 Apr 2026 - 12:50

score 1.9k · Answer 10 · 2026-03-25 23:11:15

1.9k

Views

Proof of least upper bound and greatest lower bound property of an ordered set

Published on 25 Mar 2026 - 23:11

score 400 · Answer 11 · 2026-03-25 03:21:25

400

Views

Find and relate an antiderivative to proving Cauchy's Integral Formula for a convex region

Published on 25 Mar 2026 - 3:21

score 584 · Answer 12 · 2026-03-25 19:10:37

584

Views

Manifolds whose boundaries are real / complex projective spaces

Published on 25 Mar 2026 - 19:10

score 928 · Answer 13 · 2026-04-09 17:55:43

928

Views

The Lusternik–Schnirelmann Theorem For Open and Closed Sets

Published on 09 Apr 2026 - 17:55

score 2k · Answer 14 · 2026-04-11 16:02:16

2k

Views

Open set $(0,1)$ as union of disjoint open sets

Published on 11 Apr 2026 - 16:02

score 507 · Answer 15 · 2026-04-12 09:45:17

507

Views

Different ways of identifying the boundaries of a disc with two holes

Published on 12 Apr 2026 - 9:45

List Question

Algebraic Dual and topological dual

weak topology has less open set than strong topology (in Banach spaces). Why?

Infinite graph is planar iff it can be embedded in sphere

Linear functional $\psi:X \to \mathbb{R}$ is $W$-weakly continuous if and only if it belongs to $W$

induced homeomorphism between $\mathbb R^n$ and $\mathbb R^m$ from the hypothetical existence of a homeomorphism between respective open subsets

Using sequences to test topological properties for topological manifolds

Defining a Neighborhood Around a Point Whose Elements Have Different Units

Help with completing proof of cartesian products of two path connected spaces being path connected.

An open cover of regular surface

Proof of least upper bound and greatest lower bound property of an ordered set

Find and relate an antiderivative to proving Cauchy's Integral Formula for a convex region

Manifolds whose boundaries are real / complex projective spaces

The Lusternik–Schnirelmann Theorem For Open and Closed Sets

Open set $(0,1)$ as union of disjoint open sets

Different ways of identifying the boundaries of a disc with two holes

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