Definable Topological Dynamics of $SL_2(\mathbb{C}((t))$
Logic
2019-03-11 v1
Abstract
We initiate a study of definable topological dynamics for groups definable in metastable theories. Specifically, we consider the special linear group with entries from ; the field of formal Laurent series with complex coefficients. We prove such a group is not definably amenable, find a suitable group decomposition, and describe the minimal flows of the additive and multiplicative groups of . The main result is an explicit description of the minimal flow and Ellis Group of and we observe that this is not isomorphic to , answering a question as to whether metastability is a suitable weakening of a conjecture of Newelski.
Keywords
Cite
@article{arxiv.1903.03570,
title = {Definable Topological Dynamics of $SL_2(\mathbb{C}((t))$},
author = {Thomas Kirk},
journal= {arXiv preprint arXiv:1903.03570},
year = {2019}
}