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Definition and Homology of Chain Complexes

Definition 3.27. Let TZ he a commutative ring with unit. A chain complex C is a sequence [Pg.51]

Definition 3.28. For a chain complex C, the homology groups are defined by = [Pg.51]

It is also convenient to introduce a cochain complex, which is a chain complex with differentials turned around  [Pg.51]

See other pages where Definition and Homology of Chain Complexes is mentioned: [Pg.51]   


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