TOPICS
Search

Homology Cycle


A homology cycle of degree i is an element of the kernel of the boundary operator d_i in a chain complex of modules,

 ...->C_(i+1)->^(d_(i+1))C_i->^(d_i)C_(i-1)->....

The module of i-cycles is

 Z_i=Ker(d_i).

Thus Z_i is a submodule of C_i, while d_i:C_i->C_(i-1) is the boundary operator.


See also

Cocycle, Homology, Homology Boundary

Portions of this entry contributed by Margherita Barile

Explore with Wolfram|Alpha

Cite this as:

Weisstein, Eric W., with contributions by Margherita Barile. "Homology Cycle." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/HomologyCycle.html

Subject classifications