English

Categoricity from one successor cardinal in Tame Abstract Elementary Classes

Logic 2007-05-23 v1

Abstract

Let K be an abstract elementary classes which has arbitrarily large models and satisfies the amalgamation and joint embedding properties. Theorem 1. Suppose K is \chi-tame. If K is categorical in some \lambda^+ >LS(K) then it is categorical in all \mu\geq (\lambda+\chi)^+. Theorem 2. If K is LS(K)-tame and is categorical both in LS(K) and in LS(K)^+ then K is categorical in all \mu\geq LS(K).

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Cite

@article{arxiv.math/0510004,
  title  = {Categoricity from one successor cardinal in Tame Abstract Elementary Classes},
  author = {Rami Grossberg and Monica VanDieren},
  journal= {arXiv preprint arXiv:math/0510004},
  year   = {2007}
}

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20 pages