Noticias en español
Seminars appear in decreasing order in relation to date. To find an activity of your interest just go down on the list. Normally seminars are given in English. If not, they will be marked as Spanish Only.
MATRICES SEQUENCIALES SEMI-SEPARABLES: UNA TÉCNICA EFICIENTE PARA LA MODELACIÓN Y EL CONTROL DE SISTEMAS INTERCONECTADOS DE GRAN ESCALA.
Abstract En la vida real existe un gran número de aplicaciones que se pueden modelar como un grupo de sistemas interconectados de gran escala interactuando entre sí en una única dimensión espacial. Ejemplos pueden encontrarse en Biología, Economía, Transporte e Ingeniería. La parametrización en espacio de estado escogida para cada subsistema induce una representación global de la red cuyas matrices resultantes poseen una estructura especial, conocida con el nombre de Sequencial Semi-Separable. Estas matrices estructuradas gozan de propiedades...
Investigando las obligaciones profesionales en la enseñanza de la trigonometría en Community Colleges de Estados Unidos
Resumen En este artículo, teorizamos sobre las razones que los instructores tienen para tomar decisiones sobre sus acciones el aula. Esta teorización se aleja de perspectivas más sicológicas del comportamiento de los instructores, en cuanto parte de la premisa de que los instructores tienen buenas razones para enseñar de la manera en que lo hacen, y que mediante métodos adecuados de investigación, es posible dilucidar estas razones. La mayoría de estas razones están relacionadas con la disposición de los instructores a responder a...
Be-CoDiS: A mathematical model to predict the risk of human diseases spread between countries. Validation and application to the 2014-15 Ebola Virus Disease epidemic
RESUMEN: Ebola virus disease is a lethal human and primate disease that currently requires a particular attention from the international health authorities due to important outbreaks in some Western African countries and isolated cases in the United Kingdom, the USA and Spain. Regarding the emergency of this situation, there is a need of development of decision tools, such as mathematical models, to assist the authorities to focus their efforts in important factors to eradicate Ebola. In this work, we propose a novel deterministic...
PÓLYA, CSÍKSZENTMIHÁLYI Y CARTAS: EL FENÓMENO DE FLUJO
RESUMEN El concepto de “flujo” fue propuesto por Csíkszentmihályi como una manera de describir las experiencias óptimas y positivos de los matemáticos, durante el proceso de resolución de problemas de matemáticas. Curiosamente, este estado de flujo puede en algunos casos también ser utilizado para describir el estado de un estudiantes de matemáticas que participa en la resolución de un problema matemático. Ante esto, y de acuerdo con el espíritu de Pólya, la pregunta es – ¿podemos nosotros, como profesores de matemáticas,...
Parametric rigidity of real families of conformal diffeomorphisms tangent to x -> -x
Abstract: We prove that one-parameter families of real germs of conformal diffeomorphisms tangent to the involution x -> -x are rigid in the parameter. We study the connection between the dynamics in the Poincar\’e and Siegel domains. Although repeatedly employed in the literature, the dynamics in the Siegel domain does not explain the intrinsic real properties of these germs. Rather, these properties are fully exploited in the Poincaré domain, where the fixed points are linearizable. However, a detailed study of the dynamics in the...
Equivalence between the p-cyclic quasimonotonicity and the p-cyclic monotonicity for affine maps.
Resumen: It is well known that, for general multivalued operators, monotonicity implies quasimonotonicity. This is also true if we deal with cyclic monotone/quasimonotone or even p-cyclic monotone/quasimonotone operators. In this work, we prove, in general Banach spaces, that an affine p-cyclic quasimonotone operator is in fact p-cyclic monotone.
Optimal transport, concentration of measure and functional inequalities.
Abstract: This talk is devoted to Talagrand’s transport-entropy inequalities and its deep connections to the concentration of measure phenomenon, large deviation theory and logarithmic Sobolev inequalities. After an introductive part on the field, I will present recent results obtained with P-M Samson and C. Roberto characterizing different functional inequalities in terms of concentration of measure properties. If time enables, I will also present some works in progress about transport inequalities in a discrete...
Vortex-type solutions to a magnetic Choquard equation.
http://www.dim.uchile.cl/~cmunoz/Dora.pdf
FROM STUDENT TO TEACHER: A NARRATIVE STUDY OF WOMEN LEARNING TO TEACH MATHEMATICS
ABSTRACT My study explored the experiences of mathematics anxieties in women elementary preservice teachers while learning mathematics as K-12 students and while learning to teach mathematics. Previous studies conducted in mathematics teacher education have emphasized the importance of preservice teachers’ mathematical knowledge for teaching, as a confident and competent mathematics teacher is a vital necessity in the classroom (Beilock, Gunderson, Ramirez, & Levine, 2010; Gavin & Reis, 2003; Huebner, 2009). As evidence of...
Survey on blow up for the critical generalized Korteweg-de Vries equation
Abstract: We will review recent results with Frank Merle and Pierre Raphael (and also partly with Kenji Nakanishi) on blow up for critical generalized Korteweg-de Vries equation, and more generally on the classification of solutions close to the solitons.
