کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4661917 1633477 2013 25 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Distal and non-distal NIP theories
ترجمه فارسی عنوان
نظریات NIP ديستال و غیرديستال
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات منطق ریاضی
چکیده انگلیسی

We study one way in which stable phenomena can exist in an NIP theory. We start by defining a notion of ‘pure instability’ that we call ‘distality’ in which no such phenomenon occurs. O-minimal theories and the p-adics for example are distal. Next, we try to understand what happens when distality fails. Given a type p over a sufficiently saturated model, we extract, in some sense, the stable part of p and define a notion of stable independence which is implied by non-forking and has bounded weight.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Annals of Pure and Applied Logic - Volume 164, Issue 3, March 2013, Pages 294-318