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Results tagged with at.algebraic-topology
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user 168659
Homotopy theory, homological algebra, algebraic treatments of manifolds.
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Categories associated to digraphs
Let's take a directed graph, or a digraph, $G=(V,E)$ given by a finite set of vertices $V$ and a finite set of edges $E$. We can assume that pairs of vertices can have parallel edges between them and …
