Model theoretic properties of metric valued fields
Abstract
We study model theoretic properties of valued fields (equipped with a real-valued multiplicative valuation), viewed as metric structures in continuous first order logic. For technical reasons we prefer to consider not the valued field directly, but rather the associated projective spaces , as bounded metric structures. We show that the class of (projective spaces over) metric valued fields is elementary, with theory , and that the projective spaces and are bi\"interpretable for every . The theory admits a model completion , the theory of algebraically closed metric valued fields (with a non trivial valuation). This theory is strictly stable (even up to perturbation). Similarly, we show that the theory of real closed metric valued fields, , is the model companion of the theory of formally real metric valued fields, and that it is dependent.
Keywords
Cite
@article{arxiv.0907.4560,
title = {Model theoretic properties of metric valued fields},
author = {Itaï Ben Yaacov},
journal= {arXiv preprint arXiv:0907.4560},
year = {2013}
}