Sh:523

• Shelah, S. (1997). Existence of almost free abelian groups and reflection of stationary set. Math. Japon., 45(1), 1–14. arXiv: math/9606229 MR: 1434949
• Abstract:
  §2: We answer a question of Mekler Eklof on the closure operations of the incompactness spectrum. We answer a question of Foreman and Magidor on reflection of stationary subsets of {\mathcal S}_{< \aleph_2}(\lambda) = \{ a \subseteq \lambda: |a| < \aleph_2 \}]. §3 - NPT is not transitive. We prove NPT(\lambda,\mu) + NPT(\mu,\kappa) \not\Rightarrow NPT(\lambda,\kappa)
• Version 1996-06-15_10 (17p)

@article{Sh:523,
 author = {Shelah, Saharon},
 title = {{Existence of almost free abelian groups and reflection of stationary set}},
 journal = {Math. Japon.},
 fjournal = {Mathematica Japonica},
 volume = {45},
 number = {1},
 year = {1997},
 pages = {1--14},
 issn = {0025-5513},
 mrnumber = {1434949},
 mrclass = {03E05 (20K20)},
 note = {\href{https://arxiv.org/abs/math/9606229}{arXiv: math/9606229}},
 arxiv_number = {math/9606229}
}