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arXiv · 1401.6715

Invariant types in NIP theories

Pierre Simon
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Abstract

We study invariant types in NIP theories. Amongst other things: we prove a definable version of the (p,q)-theorem in theories of small or medium directionality; we construct a canonical retraction from the space of M-invariant types to that of M-finitely satisfiable types; we show some amalgamation results for invariant types and list a number of open questions.

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Pierre Simon. 2014-01-27. Invariant types in NIP theories. https://doi.org/10.1142/s0219061315500063

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