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Results tagged with at.algebraic-topology
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user 5260
Homotopy theory, homological algebra, algebraic treatments of manifolds.
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What is the difference between homology and cohomology?
In intuitive terms, what is the main difference? We know that homology is essentially the number of $n$-cycles that are not $n$-boundaries in some simplicial complex $X$. This is, more or less, the nu …