scispace - formally typeset
Open Access

An introduction to o-minimal geometry

Reads0
Chats0
TLDR
A parallel course on the construction of o-minimal structures was given by A. Macintyre in Pisa in Spring 1999 as mentioned in this paper, where the content of these notes owes a great deal to the excellent book by L. van den Dries [vD], some interesting topics contained in this book are not included here, such as the Vapnik-Chervonenkis property.
Abstract
Preface These notes have served as a basis for a course in Pisa in Spring 1999. A parallel course on the construction of o-minimal structures was given by A. Macintyre. The content of these notes owes a great deal to the excellent book by L. van den Dries [vD]. Some interesting topics contained in this book are not included here, such as the Vapnik-Chervonenkis property. Part of the material which does not come from [vD] is taken from the paper [Co1]. This includes the sections on the choice of good coordinates and the triangulation of functions in Chapter 4 and Chapter 5. The latter chapter contains the results on triviality in families of sets or functions which were the main aim of this course. The last chapter on smoothness was intended to establish property " DC k-all k " which played a crucial role in the course of Macintyre (it can be easily deduced from the results in [vDMi]). It is also the occasion to give a few results on tubular neighborhoods. I am pleased to thank Francesca Acquistapace, Fabrizio Broglia and all colleagues of the Dipartimento di Matematica for the invitation to give this course in Pisa and their friendly hospitality. Also many thanks to Antonio Ponchio for reading these notes and correcting mistakes.

read more

Content maybe subject to copyright    Report

Citations
More filters
BookDOI

Algorithms in real algebraic geometry

TL;DR: This chapter discusses computing roadmaps and Connected Components of Algebraic Sets, as well as the "complexity of Basic Algorithms" and "cylindrical Decomposition Algorithm".
Journal ArticleDOI

Convergence of descent methods for semi-algebraic and tame problems: proximal algorithms, forward-backward splitting, and regularized Gauss-Seidel methods

TL;DR: This work proves an abstract convergence result for descent methods satisfying a sufficient-decrease assumption, and allowing a relative error tolerance, that guarantees the convergence of bounded sequences under the assumption that the function f satisfies the Kurdyka–Łojasiewicz inequality.
Journal ArticleDOI

The Lojasiewicz Inequality for Nonsmooth Subanalytic Functions with Applications to Subgradient Dynamical Systems

TL;DR: An analogous inequality in which the derivative $ abla f(x)$ can be replaced by any element $x^{\ast}$ of the subdifferential $\partial f( x)$ of $f$ is established, which provides new insights into the convergence aspects of subgradient-type dynamical systems.
Journal ArticleDOI

On the convergence of the proximal algorithm for nonsmooth functions involving analytic features

TL;DR: It is proved that any bounded sequence generated by the proximal algorithm converges to some generalized critical point and the decay estimates that are derived are of the type O(k−s), where s ∈ (0, + ∞) depends on the flatness of the function.
Journal ArticleDOI

Characterizations of Lojasiewicz inequalities: Subgradient flows, talweg, convexity

TL;DR: In this paper, a generalized form of the Kurdyka-Lojasiewicz inequality is introduced for nonsmooth lower semicontinuous functions defined on a metric or a real Hilbert space.
References
More filters
Book

Real Algebraic Geometry

TL;DR: The Tarski-Seidenberg Principle as a Transfer Tool for Real Algebraic Geometry as mentioned in this paper is a transfer tool for real algebraic geometry, and it can be used to solve the Hilbert's 17th Problem.
MonographDOI

Tame Topology and O-minimal Structures

TL;DR: In this article, the authors give a self-contained treatment of the theory of o-minimal structures from a geometric and topological viewpoint, assuming only rudimentary algebra and analysis, and cover the monotonicity theorem, cell decomposition, and the Euler characteristic in the ominimal setting and show how these notions are easier to handle than in ordinary topology.
Journal ArticleDOI

Geometric categories and o-minimal structures

TL;DR: In this article, the authors make available an extension of the category of subanalytic sets that has these sets among its objects, and that behaves much like the categories of sub analytic sets, and they apply directly only to the cartesian spaces R and not to arbitrary real analytic manifolds.
Journal ArticleDOI

Model completeness results for expansions of the ordered field of real numbers by restricted Pfaffian functions and the exponential function

TL;DR: In this paper, it was shown that the class of sub-analytic sets is closed under first-order logical definability (where, as well as boolean operations, the quantifiers ∃x ∈ R... ” and ∀x ∆ ∆, ∆, q(~ α) > 0), where p(x), q(x) are n-variable polynomials with real coefficients.
Journal ArticleDOI

Definable sets in ordered structures. i

TL;DR: In this article, a model theory for a class of linearly ordered structures, called min-minimal structures, has been proposed, which is based on the stability theory of minimal structures and strongly minimal theories.
Related Papers (5)