cohomology

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English[edit]

English Wikipedia has an article on:
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Etymology[edit]

co- +‎ homology

Noun[edit]

cohomology (countable and uncountable, plural cohomologies)

  1. (mathematics) 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.
  2. (mathematics) A system of quotient groups associated to a topological space.

Translations[edit]