# All questions with tag [math: 4-manifolds]

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## 4-Manifolds of which there exist no Kirby diagrams

In 4 - Manifold concept one makes usually making use of Kirby Diagrams to construct 4 - manifolds (portable or non - compact) with details scale and also topological buildings (as an example tiny betti numbers, rotate framework, etc). This elevates a number of questiona: 1. Is any kind of portable or non - portable 4 - manifold available as a ...

2022-06-08 21:05:54

0

## non-orientable 4-manifolds

Most of guides and also messages I review category troubles bordering 4 - manifolds which are shut and also orientable (with a periodic side - track to open orientable 4 - manifolds). This is easy to understand when you consider it from a physics perspective, due to the fact that a lot of the physics I have actually seen trust fund that we stay...

2022-06-08 20:45:48