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In this note, we show various minimality results for a geometric theory of fields $T$: $T$ is stable if and only if it is strongly minimal, $T$ is simple if and only if it has SU-rank 1, and $T$ is rosy if and only if $T$ is surgical.…

Logic · Mathematics 2026-05-22 Antongiulio Fornasiero , Elliot Kaplan , Angus Matthews

We establish the choice property, a weak analogue of definable choice, for certain tame expansions of o-minimal structures. Most noteworthily, dense pairs of real closed fields have this property.

Logic · Mathematics 2017-08-15 Pantelis E. Eleftheriou , Ayhan Günaydın , Philipp Hieronymi

We study the combination of two o-minimal extensions of the theory of real closed fields: one by a T-convex subring and the other by a T-derivation. Let T be a complete, model complete o-minimal extension of RCF. We show that the combined…

Logic · Mathematics 2025-11-11 Xiaoduo Wang

The purpose of this paper is to give a characterization for polynomials and rational functions which admit only non-negative values on definable sets in real closed valued fields. That is, generalizing the relative positivstellens\"atze for…

Algebraic Geometry · Mathematics 2014-07-29 Noa Lavi

We are concerned with rigid analytic geometry in the general setting of Henselian fields $K$ with separated analytic structure, whose theory was developed by Cluckers--Lipshitz--Robinson. It unifies earlier work and approaches of numerous…

Algebraic Geometry · Mathematics 2019-07-19 Krzysztof Jan Nowak

We consider the covering map $\pi:\mathbb{C}^n\to \mathbb{T}$ of a compact complex torus. Given an algebraic variety $X\subseteq \mathbb{C}^n$ we describe the topological closure of $\pi(X)$ in $\mathbb T$. We obtain a similar description…

Algebraic Geometry · Mathematics 2017-04-17 Ya'acov Peterzil , Sergei Starchenko

Answering a question of Junker and Ziegler, we construct a countable first order structure which is not omega-categorical, but does not have any proper non-trivial reducts, in either of two senses (model-theoretic, and group-theoretic). We…

Logic · Mathematics 2015-02-27 Manuel Bodirsky , Dugald Macpherson

We give a valuation theoretic characterization for a real closed field to be recursively saturated. Our result extends the characterization of Harnik and Ressayre \cite{hr} for a divisible ordered abelian group to be recursively saturated.

Logic · Mathematics 2015-10-27 Paola D'Aquino , Salma Kuhlmann , Karen Lange

We explain our notion of a Nash geometric category, which allows an easy comparison between the following different axiomatic notions of geometric categories: o-minimal structures on the real field, analytic geometric categories and X-sets…

Algebraic Geometry · Mathematics 2007-05-23 Joerg Schuermann

We study d-minimal expansions of ordered fields, and dense pairs thereof. We also consider other generalizations of o-minimality.

Logic · Mathematics 2021-07-12 Antongiulio Fornasiero

Given a model of the theory of the real field with restricted analytic functions such that its value group has finite archimedean rank we show how one can extend the restricted logarithm to a global logarithm with values in the polynomial…

Logic · Mathematics 2021-04-28 Tobias Kaiser

In this paper, we prove that a pseudoexponential field has continuum many non-isomorphic countable real closed exponential subfields, each with an order preserving exponential map which is surjective onto the nonnegative elements. Indeed,…

Logic · Mathematics 2016-02-10 Ahuva C. Shkop

We prove that in a globally subanalytic family of convex bodies the set of zonoids is log-analytic, and in particular it is definable in the o-minimal structure generated by globally subanalytic sets and the graph of the exponential…

Metric Geometry · Mathematics 2021-01-26 Antonio Lerario , Léo Mathis

We study the domination monoid in various classes of structures arising from the model theory of henselian valuations, including RV-expansions of henselian valued fields of residue characteristic 0 (and, more generally, of benign valued…

Logic · Mathematics 2024-05-01 Martin Hils , Rosario Mennuni

Let $U$ be an open relatively compact subanalytic subset of a real analytic manifold. We show that there exists a finite linear covering (in the sense of Guillermou and Schapira) of $U$ by subanalytic open subsets of $U$ homeomorphic to a…

Algebraic Geometry · Mathematics 2014-05-09 Adam Parusinski

In this work we attempt to generalize our result in [6] [7] for real rings (not just von Neumann regular real rings). In other words we attempt to characterize and construct real closure * of commutative unitary rings that are real. We also…

Rings and Algebras · Mathematics 2009-12-07 Jose Capco

Peterzil and Starchenko have proved the following surprising generalization of Chow's theorem: A closed analytic subset of a complex algebraic variety that is definable in an o-minimal structure, is in fact an algebraic subset. In this…

Algebraic Geometry · Mathematics 2020-09-15 Abhishek Oswal

The first papers on o-minimal structures appeared in the mid 1980s, since then the subject has grown into a wide ranging generalisation of semialgebraic, subanalytic and subpfaffian geometry. In these notes we try to show that this is in…

Logic · Mathematics 2007-05-23 Mario J. Edmundo

This paper provides a first example of a model theoretically well behaved structure consisting of a proper o-minimal expansion of the real field and a dense multiplicative subgroup of finite rank. Under certain Schanuel conditions, a…

Logic · Mathematics 2011-02-28 Philipp Hieronymi

This article discusses a way for uniquely setting up the valuations for the minimal generators of the maximal ideal of a one dimensional complete reduced and irreducible local algebra over an algebraically closed field, when treated as a…

Commutative Algebra · Mathematics 2025-09-23 Reinhold Hübl , Craig Huneke , Sarasij Maitra , Vivek Mukundan
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