Sh:914

• Shelah, S. (2011). The first almost free Whitehead group. Tbil. Math. J., 4, 17–30. arXiv: 0708.1980 MR: 2886755
• Abstract:
  Assume G.C.H. and \kappa is the first uncountable cardinal such that there is a \kappa-free abelian group which is not a Whitehead (abelian) group. We prove that \kappa is necessarily an inaccessible cardinal.
• Version 2011-09-25_11 (12p) published version (12p)

@article{Sh:914,
 author = {Shelah, Saharon},
 title = {{The first almost free Whitehead group}},
 journal = {Tbil. Math. J.},
 fjournal = {Tbilisi Mathematical Journal},
 volume = {4},
 year = {2011},
 pages = {17--30},
 issn = {1875-158X},
 mrnumber = {2886755},
 mrclass = {03E75 (03C60 20K20)},
 note = {\href{https://arxiv.org/abs/0708.1980}{arXiv: 0708.1980}},
 arxiv_number = {0708.1980}
}