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Results tagged with at.algebraic-topology
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user 5716
Homotopy theory, homological algebra, algebraic treatments of manifolds.
15
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answers
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How to demonstrate $SO(3)$ is not simply connected?
A quote from Wikipedia's article on the Rotation group:
Consider the solid ball in $\mathbb{R}^3$ of
radius $\pi$ [...].
Given the above, for every point in
this ball there is a rotation, w …
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