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Terme préférentiel

chain complex  

Définition

  • In mathematics, a chain complex is an algebraic structure that consists of a sequence of abelian groups (or modules) and a sequence of homomorphisms between consecutive groups such that the image of each homomorphism is included in the kernel of the next. Associated to a chain complex is its homology, which describes how the images are included in the kernels. A cochain complex is similar to a chain complex, except that its homomorphisms are in the opposite direction. The homology of a cochain complex is called its cohomology.
    (Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/wiki/Chain_complex)

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http://data.loterre.fr/ark:/67375/PSR-QR34831K-S

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