List questions from geometric-topology

Published on 30 Apr 2019 - 3:35

1.2k

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Cell division and the Banach–Tarski paradox

Published on 25 Mar 2026 - 3:34

102

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What do we know about Embedding problem of Covering spaces?

Published on 04 May 2019 - 16:04

64

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I wondering how can I build a homeomorphism between two squares and a ellipsoid.

Published on 06 May 2019 - 19:35

53

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Attaching map os two squares onto a sphere in isomorph to the union of sphere and a ellipsoid.

Published on 07 May 2019 - 12:11

72

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finding equivalence classes of $D^n/S^{n-1}$ and this hoemomorphism with $S^n$

Published on 07 May 2019 - 13:35

241

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Tubular Neighborhood of Disk and Circle

Published on 09 May 2019 - 12:21

101

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Open tubular neighborhood of $2$-disk in $4$-ball and its exterior

Published on 25 Mar 2026 - 14:36

120

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Homology group of a triangulation(simplicial complex) space

Published on 25 Mar 2026 - 16:02

300

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What the boundary of the disc in Poincaré disk model exactly is by a geometric point of view?

Published on 26 Mar 2026 - 15:16

256

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Proof of Kunneth theorem

Published on 14 May 2019 - 8:35

170

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Integral homology group of a 3-torus cut out a donut

Published on 15 May 2019 - 22:20

128

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Is it possible to have linked n-spheres in any other space other than $\Bbb R^{n+2}$?

Published on 25 Mar 2026 - 6:34

522

Views

Question of deck transformation on double cover $\tilde{M}$ of non-orientable manifold $M$.

Published on 25 Mar 2026 - 16:03

41

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Connected Sum and Special Holonomy

Published on 31 May 2019 - 23:03

List Question

Relationship between Betti number and Genus

Cell division and the Banach–Tarski paradox

What do we know about Embedding problem of Covering spaces?

I wondering how can I build a homeomorphism between two squares and a ellipsoid.

Attaching map os two squares onto a sphere in isomorph to the union of sphere and a ellipsoid.

finding equivalence classes of $D^n/S^{n-1}$ and this hoemomorphism with $S^n$

Tubular Neighborhood of Disk and Circle

Open tubular neighborhood of $2$-disk in $4$-ball and its exterior

Homology group of a triangulation(simplicial complex) space

What the boundary of the disc in Poincaré disk model exactly is by a geometric point of view?

Proof of Kunneth theorem

Integral homology group of a 3-torus cut out a donut

Is it possible to have linked n-spheres in any other space other than $\Bbb R^{n+2}$?

Question of deck transformation on double cover $\tilde{M}$ of non-orientable manifold $M$.

Connected Sum and Special Holonomy

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