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Topological and polynomial invariants, moduli spaces, in classification problems of polynomial vector fields
Schlomiuk, Dana (Université de Montréal. Département de Mathématiques et de Statistique)

Date: 2014
Abstract: We describe the origin and evolution of ideas on topological and polynomial invariants and their interaction, in problems of classification of polynomial vector fields. The concept of moduli space is discussed in the last section and we indicate its value in understanding the dynamics of families of such systems. Our interest here is in the concepts and the way they interact in the process of topologically classifying polynomial vector fields. We survey the literature giving an ample list of references and we illustrate the ideas on the testing ground of families of quadratic vector fields. In particular, the role of polynomial invariants is illustrated in the proof of our theorem in the section next to last. These concepts have proven their worth in a number of classification results, among them the most recent work on the geometric classification of the whole class of quadratic vector fields, according to their configurations of infinite singularities. An analog work including both finite and infinite singularities of the whole quadratic class, joint work with J. C. Artés, J. Llibre, and N. Vulpe, is in progress.
Note: Work supported by NSERC.
Rights: Tots els drets reservats
Language: Anglès
Document: Article ; recerca ; Versió publicada
Subject: Quadratic vector fields ; Phase portrait ; Affine invariant polynomials ; Topological invariants ; Moduli space
Published in: Publicacions matemàtiques, Vol. Extra, Núm. (2014) , p. 461-496, ISSN 2014-4350

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DOI: 10.5565/PUBLMAT_Extra14_23

36 p, 338.1 KB

The record appears in these collections:
Articles > Published articles > Publicacions matemàtiques
Articles > Research articles

 Record created 2014-05-19, last modified 2021-12-11

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