Whitehead modules over large principal ideal domains [article]

Paul C. Eklof, Saharon Shelah
2000 arXiv   pre-print
We consider the Whitehead problem for principal ideal domains of large size. It is proved, in ZFC, that some p.i.d.'s of size >= aleph_2 have non-free Whitehead modules even though they are not complete discrete valuation rings.
arXiv:math/0011230v1 fatcat:bz5k626vhffulg2odqzi4gqsba