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Cokernel


The cokernel of a group homomorphism f:A-->B of Abelian groups (modules, or abstract vector spaces) is the quotient group (quotient module or quotient space, respectively) B/Image(f).


See also

Range, Group Kernel, Module Kernel

This entry contributed by Margherita Barile

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Cite this as:

Barile, Margherita. "Cokernel." From MathWorld--A Wolfram Web Resource, created by Eric W. Weisstein. https://mathworld.wolfram.com/Cokernel.html

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