Kähler differentials: Difference between revisions
Jump to navigation
Jump to search
imported>Giovanni Antonio DiMatteo (beginning page) |
(No difference)
|
Revision as of 18:55, 9 December 2007
Definition
Let be an algebra. An A differential of B into an -module is a map D:B\to M such that
- for all
- for
Observe that the set of all such maps is a -module. Moreover, is a representable functor; we call the representative the module of Kähler differentials.