Sh:1038

• Shelah, S., & Spinas, O. (2015). Mad spectra. J. Symb. Log., 80(3), 901–916. arXiv: 1402.5616 DOI: 10.1017/jsl.2015.9 MR: 3395354
• Abstract:
  The mad spectrum is the set of all cardinalities of infinite maximal almost disjoint families on \omega. We treat the problem to characterize those sets \mathcal A which, in some forcing extension of the universe, can be the mad spectrum. We solve this problem to some extent. What remains open is the possible values of min({\mathcal A}) and max({\mathcal A}).
• Version 2015-01-29_11 (18p) published version (16p)

@article{Sh:1038,
 author = {Shelah, Saharon and Spinas, Otmar},
 title = {{Mad spectra}},
 journal = {J. Symb. Log.},
 fjournal = {The Journal of Symbolic Logic},
 volume = {80},
 number = {3},
 year = {2015},
 pages = {901--916},
 issn = {0022-4812},
 mrnumber = {3395354},
 mrclass = {03E35 (03E17)},
 doi = {10.1017/jsl.2015.9},
 note = {\href{https://arxiv.org/abs/1402.5616}{arXiv: 1402.5616}},
 arxiv_number = {1402.5616}
}