Aplicacions quadràtiques que preserven l'àrea a R² Authors Carles Simó Abstract I consider the description, explanation and prediction of the properties of the orbits of a given system as one of the main goals of Dynamical Systems. In this lecture we focus on the quadratic Area Preserving Maps (APM) in R2. There are several reasons for this choice. It is a paradigmatic model. Many problems concerning: the existence of invariant curves diffeomorphic to a circle; the role of invariant manifolds of hyperbolic fixed or periodic points and how they lead to the existence of chaos; the geometrical mechanisms leading to the destruction of invariant curves; and quantitative measures of different properties for general APM, can all be understood thanks to our knowledge of the quadratic case. A review of these topics is presented in the lecture. Several open questions and extensions are shown at the end of the lecture. Downloads Text complet (Català) Published 2014-09-10 How to Cite Simó, C. (2014). Aplicacions quadràtiques que preserven l’àrea a R² . Butlletí De La Societat Catalana De Matemàtiques, 29(1), 77–108. Retrieved from https://revistes.iec.cat/index.php/BSCM/article/view/85830.001 More Citation Formats ACM ACS APA ABNT Chicago Harvard IEEE MLA Turabian Vancouver Download Citation Endnote/Zotero/Mendeley (RIS) BibTeX Issue Vol. 29 No. 1 (2014) Section Articles License The intellectual property of articles belongs to the respective authors.On submitting articles for publication to the journal Butlletí de la Societat Catalana de Matemàtiques, authors accept the following terms:Authors assign to Societat Catalana de Matemàtiques (a subsidiary of Institut d’Estudis Catalans) the rights of reproduction, communication to the public and distribution of the articles submitted for publication to Butlletí de la Societat Catalana de Matemàtiques.Authors answer to Societat Catalana de Matemàtiques for the authorship and originality of submitted articles.Authors are responsible for obtaining permission for the reproduction of all graphic material included in articles.Societat Catalana de Matemàtiques declines all liability for the possible infringement of intellectual property rights by authors.The contents published in the journal, unless otherwise stated in the text or in the graphic material, are subject to a Creative Commons Attribution-NonCommercial-NoDerivs (by-nc-nd) 3.0 Spain licence, the complete text of which may be found at https://creativecommons.org/licenses/by-nc-nd/3.0/es/deed.en. Consequently, the general public is authorised to reproduce, distribute and communicate the work, provided that its authorship and the body publishing it are acknowledged, and that no commercial use and no derivative works are made of it.The journal Butlletí de la Societat Catalana de Matemàtiques is not responsible for the ideas and opinions expressed by the authors of the published articles.