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Homotopy theory, homological algebra, algebraic treatments of manifolds.

7 votes
0 answers
318 views

Topological operations corresponding to abelianization of the fundamental group

$\newcommand{\ab}{\mathrm{ab}}$Suppose we have a topological space $X$ with a non-abelian fundamental group $\pi_1(X)$. We'd like to perform a sequence of topological operations on $X$ (for example, …
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  • 79
0 votes
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99 views

Spaces of $n$-dimensional topological spaces whose fundamental group is given

If we fix a group $G$ and a dimension $n$, we can ask which $n$-dimensional locally path-connected$^*$ (or otherwise sufficiently nice) topological spaces $X$ have $\pi_1(X) \cong G$. Would these spac …
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  • 79