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    <title>IME - GSD</title>
    <description>IME - GSD</description>
    <itunes:summary>IME - GSD</itunes:summary>
    <link>https://gsd.ime.ufg.br/news</link>
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    <item>
      <title>Seminário de Sistemas Dinâmicos 2024/2</title>
      <description>&lt;img width="200" alt="Campos vetoriais suaves em duas zonas." title="Campos vetoriais suaves em duas zonas." src="http://gsd.ime.ufg.brhttps://files.cercomp.ufg.br/weby/up/762/o/2014-10-20_12.47.02.jpg?1426526545" /&gt;&lt;br/&gt;&lt;br/&gt;&lt;br/&gt;&lt;a target="_blank" href="https://gsd.ime.ufg.br/p/52376-seminario-de-sistemas-dinamicos-2024-2"&gt;Original&lt;/a&gt;</description>
      <pubDate>Mon, 11 Nov 2024 13:11:45 -0300</pubDate>
      <link>https://gsd.ime.ufg.br/n/186013-seminario-de-sistemas-dinamicos-2024-2</link>
      <guid>https://gsd.ime.ufg.br/n/186013-seminario-de-sistemas-dinamicos-2024-2</guid>
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      <title>Seminário de Sistemas Dinâmicos 2024/1</title>
      <description>&lt;img width="200" alt="SARS-CoV-2 Spike Protein" title="SARS-CoV-2 Spike Protein" src="http://gsd.ime.ufg.brhttps://files.cercomp.ufg.br/weby/up/762/o/spike.png?1685149963" /&gt;&lt;br/&gt;&lt;br/&gt;&lt;br/&gt;&lt;a target="_blank" href="https://gsd.ime.ufg.br/p/49686-seminarios-de-sistemas-dinamicos-2024-1"&gt;Original&lt;/a&gt;</description>
      <pubDate>Thu, 28 Mar 2024 17:19:12 -0300</pubDate>
      <link>https://gsd.ime.ufg.br/n/180194-seminario-de-sistemas-dinamicos-2024-1</link>
      <guid>https://gsd.ime.ufg.br/n/180194-seminario-de-sistemas-dinamicos-2024-1</guid>
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      <title>Seminário de Sistemas Dinâmicos 2023/2</title>
      <description>&lt;img width="200" alt="attractor" title="attractor" src="http://gsd.ime.ufg.brhttps://files.cercomp.ufg.br/weby/up/762/o/attractor.JPG?1687180715" /&gt;&lt;br/&gt;&lt;p&gt;Me. Luan Lima da Silva - IME/UFG&lt;/p&gt;&lt;br/&gt;&lt;p style="text-align: center;"&gt;&lt;strong&gt;Seminário 14:&lt;span&gt; 30/01/2024&lt;/span&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Título do seminário: &lt;/strong&gt;Polar Blow-Up Applied to Regularized Planar Filippov's Fields&lt;br /&gt;&lt;strong&gt;Ministrante: &lt;/strong&gt;Me. Luan Lima da Silva - IME/UFG&lt;br /&gt;&lt;strong&gt;Data:&lt;/strong&gt; 30/01/2024&lt;br /&gt;&lt;strong&gt;Horário:&lt;/strong&gt; 11h&lt;br /&gt;&lt;strong&gt;Local:&lt;/strong&gt; Auditório do IME&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Resumo: &lt;/strong&gt;The aim of the seminar is to present how the change of semi-cylindrical coordinates can be applied to the study of the dynamics of regularized Filippov’s fields. Under certain hypotheses, we can show how the change of coordinates produces a fast-slow vector field and then apply Fenichel’s theory to obtain information about the dynamics of the regularized Filippov’s field. One of the highlights of this method is to show how the results of the dynamics can be independent of the choice of transition function. The essence of this study is similar to the Blow-up method applied to the analysis of the dynamics of non-hyperbolic equilibrium points for planar polynomial fields.&lt;/p&gt;</description>
      <pubDate>Tue, 16 Jan 2024 15:59:22 -0300</pubDate>
      <link>https://gsd.ime.ufg.br/n/178014-seminario-de-sistemas-dinamicos-2023-2</link>
      <guid>https://gsd.ime.ufg.br/n/178014-seminario-de-sistemas-dinamicos-2023-2</guid>
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      <title>Seminário de Sistemas Dinâmicos 2023/2</title>
      <description>&lt;img width="200" alt="figura1" title="figura1" src="http://gsd.ime.ufg.brhttps://files.cercomp.ufg.br/weby/up/762/o/figds1.png?1698441857" /&gt;&lt;br/&gt;&lt;p&gt;Me. Gerardo Homero Anacona Erazo - IME/UFG&lt;/p&gt;&lt;br/&gt;&lt;p style="text-align: center;"&gt;&lt;strong&gt;Seminário 13:&lt;span&gt; 23/01/2024&lt;/span&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Título do seminário: &lt;/strong&gt;Kummer lines and principal configurations&lt;br /&gt;&lt;strong&gt;Ministrante: &lt;/strong&gt;Me. Gerardo Homero Anacona Erazo - IME/UFG&lt;br /&gt;&lt;strong&gt;Data:&lt;/strong&gt; 23/01/2024&lt;br /&gt;&lt;strong&gt;Horário:&lt;/strong&gt; 10h&lt;br /&gt;&lt;strong&gt;Local:&lt;/strong&gt; Auditório do IME&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Resumo:&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;img src="https://files.cercomp.ufg.br/weby/up/762/o/resumo_gerardo_2023_2.png" alt="Resumo Gerardo 2023_2" width="750" height="299" /&gt;&lt;/strong&gt;&lt;/p&gt;</description>
      <pubDate>Tue, 16 Jan 2024 15:46:27 -0300</pubDate>
      <link>https://gsd.ime.ufg.br/n/178012-seminario-de-sistemas-dinamicos-2023-2</link>
      <guid>https://gsd.ime.ufg.br/n/178012-seminario-de-sistemas-dinamicos-2023-2</guid>
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      <title>Seminário de Sistemas Dinâmicos 2023/2</title>
      <description>&lt;img width="200" alt="figura2" title="figura2" src="http://gsd.ime.ufg.brhttps://files.cercomp.ufg.br/weby/up/762/o/figds2.png?1698441928" /&gt;&lt;br/&gt;&lt;p&gt;Me. Angela Carolina Tunubala Sanchez - IME/UFG&lt;/p&gt;&lt;br/&gt;&lt;p style="text-align: center;"&gt;&lt;strong&gt;Seminário 12:&lt;span&gt; 16/01/2024&lt;/span&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Título do seminário: &lt;/strong&gt;Hopf-Like Bifurcations in a Class of 3D Piecewise Linear System&lt;br /&gt;&lt;strong&gt;Ministrante: &lt;/strong&gt;Me. Angela Carolina Tunubala Sanchez - IME/UFG&lt;br /&gt;&lt;strong&gt;Data:&lt;/strong&gt; 16/01/2024&lt;br /&gt;&lt;strong&gt;Horário:&lt;/strong&gt; 10h&lt;br /&gt;&lt;strong&gt;Local:&lt;/strong&gt; Auditório do IME&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Resumo:&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;img src="https://files.cercomp.ufg.br/weby/up/762/o/angela_resumo_2023.png" alt="Resumo - Angela" width="750" height="411" /&gt;&lt;/strong&gt;&lt;/p&gt;</description>
      <pubDate>Mon, 15 Jan 2024 17:47:10 -0300</pubDate>
      <link>https://gsd.ime.ufg.br/n/177978-seminario-de-sistemas-dinamicos-2023-2</link>
      <guid>https://gsd.ime.ufg.br/n/177978-seminario-de-sistemas-dinamicos-2023-2</guid>
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      <title>Seminário de Sistemas Dinâmicos 2023/2</title>
      <description>&lt;img width="200" alt="Lorenz" title="Lorenz" src="http://gsd.ime.ufg.brhttps://files.cercomp.ufg.br/weby/up/762/o/borboleta.jpg?1682172439" /&gt;&lt;br/&gt;&lt;p&gt;Prof. Dr. Samuel Ferreira - IME/UFG&lt;/p&gt;&lt;br/&gt;&lt;p style="text-align: center;"&gt;&lt;strong&gt;Seminário 11:&lt;span&gt; 09/01/2024&lt;/span&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Título do seminário: &lt;/strong&gt;Bifurcação de órbitas ciclos limite para uma classe de campos tridimensionais descontínuos com tangências quadráticas em R^3&lt;br /&gt;&lt;strong&gt;Ministrante: &lt;/strong&gt;Prof. Dr. Samuel Ferreira - IME/UFG&lt;br /&gt;&lt;strong&gt;Data:&lt;/strong&gt; 09/01/2024&lt;br /&gt;&lt;strong&gt;Horário:&lt;/strong&gt; 10h&lt;br /&gt;&lt;strong&gt;Local:&lt;/strong&gt; Auditório do IME&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Resumo:&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;img src="https://files.cercomp.ufg.br/weby/up/762/o/resumo_samuel.png" alt="resumo samuel 2023_2" width="675" height="471" /&gt;&lt;/strong&gt;&lt;/p&gt;</description>
      <pubDate>Thu, 21 Dec 2023 20:57:04 -0300</pubDate>
      <link>https://gsd.ime.ufg.br/n/177616-seminario-de-sistemas-dinamicos-2023-2</link>
      <guid>https://gsd.ime.ufg.br/n/177616-seminario-de-sistemas-dinamicos-2023-2</guid>
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      <title>Seminário de Sistemas Dinâmicos 2023/2</title>
      <description>&lt;img width="200" alt="circulos" title="circulos" src="http://gsd.ime.ufg.brhttps://files.cercomp.ufg.br/weby/up/762/o/fa.JPG?1702734709" /&gt;&lt;br/&gt;&lt;p&gt;Prof. Dr. Benito Pires - USP&lt;/p&gt;&lt;br/&gt;&lt;p style="text-align: center;"&gt;&lt;strong&gt;Seminário 10:&lt;span&gt; 19/12/2023&lt;/span&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Título do seminário: &lt;/strong&gt;Urnas de Pólya e Sistemas Dinâmicos&lt;br /&gt;&lt;strong&gt;Ministrante: &lt;/strong&gt;Prof. Dr. Benito Pires - USP&lt;br /&gt;&lt;strong&gt;Data:&lt;/strong&gt; 19/12/2023&lt;br /&gt;&lt;strong&gt;Horário:&lt;/strong&gt; 10h&lt;br /&gt;&lt;strong&gt;Local:&lt;/strong&gt; Auditório do IME&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Resumo: &lt;/strong&gt;Nesta palestra, será introduzido um modelo de Urnas de Pólya interagentes definidas em grafos e um resultado sobre a convergência global quase-certa do processo para os pontos fixos de uma certa função. Também serão discutidos o Algoritmo da Aproximação Estocástica e alguns conceitos de Sistemas Dinâmicos envolvidos na prova do resultado tais como recorrência por cadeias, função de Lyapunov e função energia de Hopfield. Trabalho em colaboração científica com o professor Rafael Rosales da Universidade de São Paulo. Suporte financeiro da FAPESP.&lt;/p&gt;</description>
      <pubDate>Sat, 16 Dec 2023 10:41:24 -0300</pubDate>
      <link>https://gsd.ime.ufg.br/n/177435-seminario-de-sistemas-dinamicos-2023-2</link>
      <guid>https://gsd.ime.ufg.br/n/177435-seminario-de-sistemas-dinamicos-2023-2</guid>
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      <title>Seminário de Sistemas Dinâmicos 2023/2</title>
      <description>&lt;img width="200" alt="elipsoide" title="elipsoide" src="http://gsd.ime.ufg.brhttps://files.cercomp.ufg.br/weby/up/762/o/monge.JPG?1702209436" /&gt;&lt;br/&gt;&lt;p&gt;Prof. Dr. Ronaldo Alves Garcia - IME/UFG&lt;/p&gt;&lt;br/&gt;&lt;p style="text-align: center;"&gt;&lt;strong&gt;Seminário 9:&lt;span&gt; 12/12/2023&lt;/span&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Título do seminário: &lt;/strong&gt;The mathematical work of J.Sotomayor: bifurcation theory and qualitative theory of principal lines on surfaces&lt;br /&gt;&lt;strong&gt;Ministrante: &lt;/strong&gt;Prof. Dr. Ronaldo Alves Garcia - IME/UFG&lt;br /&gt;&lt;strong&gt;Data:&lt;/strong&gt; 12/12/2023&lt;br /&gt;&lt;strong&gt;Horário:&lt;/strong&gt; 10h&lt;br /&gt;&lt;strong&gt;Local:&lt;/strong&gt; Auditório do IME&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Resumo: &lt;/strong&gt;In this thesis, the main topic is the classification of bifurcations appearing in generic one-parameter families of vector fields. They were characterized in terms of their stability and regularity properties. Together with Carlos Gutierrez (in memoriam), they developed the qualitative theory of principal lines on surfaces. The main goal of this talk is to recall the main mathematical contributions of Jorge Sotomayor (1942-2022).&lt;strong&gt;&lt;br /&gt;&lt;/strong&gt;&lt;/p&gt;</description>
      <pubDate>Sun, 10 Dec 2023 08:47:57 -0300</pubDate>
      <link>https://gsd.ime.ufg.br/n/177156-seminario-de-sistemas-dinamicos-2023-2</link>
      <guid>https://gsd.ime.ufg.br/n/177156-seminario-de-sistemas-dinamicos-2023-2</guid>
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      <title>Seminário de Sistemas Dinâmicos 2023/2</title>
      <description>&lt;img width="200" alt="Lorenz" title="Lorenz" src="http://gsd.ime.ufg.brhttps://files.cercomp.ufg.br/weby/up/762/o/borboleta.jpg?1682172439" /&gt;&lt;br/&gt;&lt;p&gt;Prof. Me. Adimar Moretti Jr. - IME/UFG e UFMT&lt;/p&gt;&lt;br/&gt;&lt;p style="text-align: center;"&gt;&lt;strong&gt;Seminário 8:&lt;span&gt; 05/12/2023&lt;/span&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Título do seminário:&lt;/strong&gt; Differents Approaches for a Discontinuous Climate Model&lt;br /&gt;&lt;strong&gt;Ministrante:&lt;/strong&gt; Prof. Me. Adimar Moretti Jr. - IME/UFG e UFMT&lt;br /&gt;&lt;strong&gt;Data:&lt;/strong&gt; 05/12/2023&lt;br /&gt;&lt;strong&gt;Horário:&lt;/strong&gt; 10h&lt;br /&gt;&lt;strong&gt;Local:&lt;/strong&gt; Auditório do IME&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Resumo: &lt;/strong&gt;In this seminar, we will present a study of dynamics of a two-dimensional system of ordinary differential equations that, in the context of climate modeling, represents the glaciation cycle of an idealized Earth. Due to physical constraints that must be taken into account, the associated vector field is defined in a strip of the Euclidean plan, in which the boundary is included and is the discontinuity set the of system. First, we will discuss two approaches that ensures the existence of a periodic (orbit) solution. To finish, we highlight the new approaches that we are considering in the ongoing research, aiming to prove the existence of such an orbit as well. The Filippov's convention and the Geometric Singular Perturbation Theory will be topics covered in the presentation. This is a joint work with professors Rodrigo Euzébio (advisor) and Rony Cristiano from IME/UFG, and professor Richard McGehee from the University of Minnesota-USA.&lt;/p&gt;</description>
      <pubDate>Sun, 03 Dec 2023 11:30:45 -0300</pubDate>
      <link>https://gsd.ime.ufg.br/n/176924-seminario-de-sistemas-dinamicos-2023-2</link>
      <guid>https://gsd.ime.ufg.br/n/176924-seminario-de-sistemas-dinamicos-2023-2</guid>
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      <title>Seminário de Sistemas Dinâmicos 2023/2</title>
      <description>&lt;img width="200" alt="attractor" title="attractor" src="http://gsd.ime.ufg.brhttps://files.cercomp.ufg.br/weby/up/762/o/attractor.JPG?1687180715" /&gt;&lt;br/&gt;&lt;p&gt;Prof. Me. Warley Mendes Batista - IME/UFG e Unimontes&lt;/p&gt;&lt;br/&gt;&lt;p style="text-align: center;"&gt;&lt;strong&gt;Seminário 7:&lt;span&gt; 28/11/2023&lt;/span&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Título do seminário:&lt;/strong&gt; Uma conexão entre as teorias de campos vetoriais suaves por partes e sistemas Slow-Fast&lt;br /&gt;&lt;strong&gt;Ministrante:&lt;/strong&gt; Prof. Me. Warley Mendes Batista - IME/UFG e Unimontes&lt;br /&gt;&lt;strong&gt;Data:&lt;/strong&gt; 28/11/2023&lt;br /&gt;&lt;strong&gt;Horário:&lt;/strong&gt; 10h&lt;br /&gt;&lt;strong&gt;Local:&lt;/strong&gt; Auditório do IME&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Resumo: &lt;/strong&gt;Neste seminário, relembramos os conceitos básicos da teoria de campos vetoriais suaves por partes, apresentamos o conceito de sistemas Slow-Fast, bem como suas principais terminologias, e apresentamos um resultado que fornece uma conexão explicita entre campos deslizantes e sistemas Slow-Fast.&lt;/p&gt;</description>
      <pubDate>Sat, 25 Nov 2023 14:45:14 -0300</pubDate>
      <link>https://gsd.ime.ufg.br/n/176686-seminario-de-sistemas-dinamicos-2023-2</link>
      <guid>https://gsd.ime.ufg.br/n/176686-seminario-de-sistemas-dinamicos-2023-2</guid>
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