bn:01212180n
Noun Concept
EL
cohomology  cohomology θεωρία  γενικευμένη θεωρία cohomology  ομάδα cohomology
EN
In mathematics, specifically in homology theory and algebraic topology, cohomology is a general term for a sequence of abelian groups, usually one associated with a topological space, often defined from a cochain complex. Wikipedia
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