extension

A short exact sequence $0\to A\to B\to C\to 0$ is sometimes called an extension of $C$ by $A$. This is also applied to an object $B$ which fits into such an exact sequence.

Title	extension
Canonical name	Extension
Date of creation	2013-03-22 13:51:10
Last modified on	2013-03-22 13:51:10
Owner	bwebste (988)
Last modified by	bwebste (988)
Numerical id	4
Author	bwebste (988)
Entry type	Definition
Classification	msc 20E22