Maryanthe Malliaris and Saharon Shelah,
Cofinality spectrum problems in model theory, set theory and general topology
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Maryanthe Malliaris and Saharon Shelah,
Existence of optimal ultrafilters and the fundamental complexity of simple theories
. Advances in Mathematics, vol. 290 (2016), pp. 614–681. -
Maryanthe Malliaris and Saharon Shelah,
Keisler’s order has infinitely many classes
. Israel Journal of Mathematics, to appear, https://math.uchicago.edu/∼mem/.
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