List questions from klein-bottle

Published on 06 Mar 2026 - 16:00

366

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How to tell whether a combinatorial surface is orientable.

Published on 28 Feb 2026 - 23:22

2.6k

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Is the Klein bottle homeomorphic to the union of two Mobius bands attached along boundary circle?

Published on 11 Apr 2016 - 22:07

376

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Is this octogon topologically equivalent to the Klein Bottle?

Published on 15 Apr 2016 - 22:59

891

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Fundamental group Klein Bottle triangulation

Published on 09 May 2016 - 18:29

539

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Klein bottle in $\mathbb{R}^4$ does not have a couple of normal vector fields

Published on 15 May 2016 - 19:29

339

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Homotopy 'diagrams' for Klein bottle and projective plane

Published on 24 May 2016 - 23:01

585

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Link between $\mathbb{Z}$ and the fundamental group's of 'common' topological spaces

Published on 24 May 2016 - 23:49

1.2k

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Is this the projective plane or the Klein bottle? (Fundamental polygon)

Published on 25 May 2016 - 12:48

202

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Confusion of classification of closed surfaces

Published on 25 May 2016 - 22:09

1.5k

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Klein bottle homeomorphic to union of Möbius strip

Published on 10 Apr 2013 - 3:01

518

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Klein Bottle discrete harmonics?

Published on 01 May 2013 - 8:33

2.9k

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Minimal triangulation of Klein bottle

Published on 27 Jul 2013 - 12:05

1.3k

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Homework: The Klein bottle retracts onto a loop.

Published on 29 Aug 2013 - 6:14

1.2k

Views

Show that the Klein bottle is the connected sum of two copies of $\Bbb{R}P^2$

Published on 09 Sep 2013 - 8:17

List Question

Whether there exists some compact manifold whose continuous map must have a fixed point?

How to tell whether a combinatorial surface is orientable.

Is the Klein bottle homeomorphic to the union of two Mobius bands attached along boundary circle?

Is this octogon topologically equivalent to the Klein Bottle?

Fundamental group Klein Bottle triangulation

Klein bottle in $\mathbb{R}^4$ does not have a couple of normal vector fields

Homotopy 'diagrams' for Klein bottle and projective plane

Link between $\mathbb{Z}$ and the fundamental group's of 'common' topological spaces

Is this the projective plane or the Klein bottle? (Fundamental polygon)

Confusion of classification of closed surfaces

Klein bottle homeomorphic to union of Möbius strip

Klein Bottle discrete harmonics?

Minimal triangulation of Klein bottle

Homework: The Klein bottle retracts onto a loop.

Show that the Klein bottle is the connected sum of two copies of $\Bbb{R}P^2$

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