Dictionary
cohomology
Meaning
- A method of contravariantly associating a family of invariant quotient groups to each algebraic or geometric object of a category, including categories of geometric and algebraic objects.
- A system of quotient groups associated to a topological space.
Etymology
From co- + homology.
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Cohomology arises from the algebraic dualization of the construction 🚧 of homology .
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Cohomology arises from the algebraic dualization of the construction of homology.