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Results tagged with at.algebraic-topology
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user 519114
Homotopy theory, homological algebra, algebraic treatments of manifolds.
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Crossed homomorphism as morphism in the ambient category
Suppose we are given a crossed-homomorphism $\phi:G\to A$ (and an action $\alpha$ of $G$ on $A$)
$\phi(ab)=\phi(a)+\alpha(a)(\phi(b))$. Now, unless the action is trivial, this is not a homomorphism an …
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