Holmstrom Flat

http://www.ncatlab.org/nlab/show/flat+functor

See http://ncatlab.org/nlab/show/flat+morphism for notions of flatness and link to flatness in derived algebraic geometry.

http://mathoverflow.net/questions/51095/flat-module-and-torsion-free-module

In the intro to the Soule et al Arakelov book, there is an explicit description of what flatness means for an arithmetic scheme.

nLab page on Flat

Created on June 9, 2014 at 21:16:13 by Andreas Holmström