Contents

cohomology

# Contents

## Idea

The dual to a chain.

$H_n = Z_n/B_n$(chain-)homology(cochain-)cohomology$H^n = Z^n/B^n$
$C_n$chaincochain$C^n$
$Z_n \subset C_n$cyclecocycle$Z^n \subset C^n$
$B_n \subset C_n$boundarycoboundary$B^n \subset C^n$

Created on August 27, 2012 at 00:48:23. See the history of this page for a list of all contributions to it.