Now showing items 21-40 of 102

    • Continuous symmetry and shape measures 

      Perarnau Llobet, Guillem; Pfeifle, Julián; Saludes Closa, Jordi (Centre de Recerca Matemàtica, 2010-06)
      Part of book or chapter of book
      Open Access
    • Coupling symmetries with Poisson structures 

      Laurent-Gengoux, Camille; Miranda Galcerán, Eva (2012-10-30)
      External research report
      Restricted access - author's decision
      In this paper we study normal forms problems for integrable systems on Poisson manifolds in the presence of additional symmetries. The symmetries that we consider are encoded in actions of compact Lie groups. The ...
    • Crystal growth and soil expansion: the role of interfacial pressure and pore structure 

      Ramon Tarragona, Anna; Alonso Pérez de Agreda, Eduardo (CRC Press, 2014)
      Conference report
      Restricted access - publisher's policy
      The paper summarizes first a set of field observations in connection with the severe heave experienced by Lilla tunnel excavated in a Tertiary anhydritic claystone. Heave and swelling pressures against the tunnel rigid ...
    • Defining an2-disparity measure to check and improve the geometric accuracy of noninterpolating curved high-order meshes 

      Ruiz Gironés, Eloi; Sarrate Ramos, Josep; Roca Navarro, Francisco Javier (Elsevier, 2015)
      Conference report
      Open Access
      We define an2-disparity measure between curved high-order meshes and parameterized manifolds in terms of an2norm. The main application of the proposed definition is to measure and improve the distance between a curved high-order ...
    • Diseño y análisis de la variante sur de Moià 

      Miguel Castillo, Ana (Universitat Politècnica de Catalunya, 2013-07-11)
      Master thesis (pre-Bologna period)
      Restricted access - author's decision
      El presente documento corresponde al proyecto final de carrera de Ingeniería Técnica en Topografía de Ana Miguel Castillo. En este proyecto se lleva a cabo la creación de un nuevo vial en el municipio de Moià, esté nuevo ...
    • Economic uncertainty: a geometric indicator of discrepancy among experts’ expectations 

      Claveria González, Oscar; Monte Moreno, Enrique; Torra Porras, Salvador (2018-01-01)
      Article
      Open Access
      In this study we present a geometric approach to proxy economic uncertainty. We design a positional indicator of disagreement among survey-based agents’ expectations about the state of the economy. Previous dispersion-based ...
    • Emmy Noether: una contribución extraordinaria y generosa al establecimiento de la Geometría Algebraica 

      Mallavibarrena, Raquel (2009-02-18)
      Audiovisual
      Open Access
      En la charla se mostrará la importante contribución de la investigación desarrollada por Emmy Noether sobre la teoría de ideales a los fundamentos de la Geometría Algebraica. Su alumno Van der Waerden tuvo un papel clave ...
    • Estrategias de Modelado formal en la Sagrada Familia 

      Núñez Andrés, María Amparo; Buill Pozuelo, Felipe; Mesa Gisbert, Andrés de; Regot Marimón, Joaquín Manuel (Laboratorio de Estudios Urbanos, Universidad del Bío-Bío / Centre de Política de Sòl i Valoracions, 2005-10)
      Conference report
      Open Access
      This paper explain the inverse engineering process to obtain an accuracy three-dimensional model of a big window module located in upper left side of the Sagrada Familia temple. The aim is to define a process to generate ...
    • Estudi de viabilitat d'una superfície amb geometria variable 

      Torredemer Tenesa, Sergi (Universitat Politècnica de Catalunya, 2018-06)
      Master thesis
      Restricted access - author's decision
      L’objectiu d’aquest Treball de Fi de Màster és l’estudi de la viabilitat conceptual de la construcció i instal·lació d'un dispositiu que permeti modificar la seva geometria (cota Z), i d’aquesta manera replicar en remot ...
    • Exact controllability of linear dynamical systems: a geometrical approach 

      García Planas, María Isabel (2016-11-01)
      Article
      Open Access
      In recent years there has been growing interest in the descriptive analysis of complex systems, permeating many aspects of daily life, obtaining considerable advances in the description of their structural and dynamical ...
    • Exercices, problems and practices of metric geometry 

      Fernández Sánchez, Joaquín; Ramos Cabal, Alba; Villa Sicilia, Ma Arantzazu (Universitat Politècnica de Catalunya, 2019-10-21)
      Problem statement, exercise
      Open Access
    • Fractales del conocimiento 

      Vilalta, Xavier (Cátedra Blanca de Barcelona, 2019-12)
      Article
      Open Access
      Xavier Vilalta es el fundador y director de Vilalta Architects.Con su equipo, ha desarrollado trabajos a nivel nacional, seguido de proyectos internacionales en países emergentes deÁfrica y Medio Oriente. Participa ...
    • From b-Poisson manifolds to symplectic mapping tori and back 

      Miranda Galcerán, Eva; Guillemin, Victor; Pissarra Pires, Ana Rita (2012)
      Conference lecture
      Open Access
    • Función y forma en matemáticas 

      Rivera Herráez, Rafael; Trujillo Guillén, Macarena (Universitat Politècnica de Catalunya. Iniciativa Digital Politècnica / Grup per a la Innovació i la Logística Docent en l'Arquitectura (GILDA), 2019-11)
      Conference report
      Open Access
      En esta comunicación presentamos una experiencia interdisciplinar realizada en la asignatura de Matemáticas 2 del Grado en Fundamentos de la Arquitectura de la Universitat Politècnica de València. La temática que utilizamos ...
    • Further results on the fractional Yamabe problem: the umbilic case 

      González Nogueras, María del Mar (2014)
      External research report
      Open Access
      We prove some existence results for the fractional Yamabe problem in the case that the boundary manifold is umbilic, thus covering some of the cases not considered by Gonz alez and Qing. These are inspired ...
    • Gauss i la geometria 

      Reventós, Agustí (2006-02-15)
      Audiovisual
      Open Access
      Descripció dels principals treballs de Gauss sobre geometria i les seves repercussions posteriors.
    • Generic performance simulator of spaceborne GNSS-Reflectometer for land applications 

      Hyuk, Park; Camps Carmona, Adriano José; Castellví Esturi, Jordi (Institute of Electrical and Electronics Engineers (IEEE), 2020-01-01)
      Article
      Open Access
      Nowadays, the space missions employing the global navigation satellite system reflectometry (GNSS-R) are UK TDS-1, NASA CYGNSS, and the Chinese BuFeng-1A/B twin satellites, part of the first Chinese global navigation ...
    • Geodesic flows and Neumann systems on Stiefel varieties: geometry and integrability 

      Fedorov, Yuri (2010-12-03)
      Article
      Restricted access - publisher's policy
      We study integrable geodesic flows on Stiefel varieties Vn,r = SO(n)/SO(n−r ) given by the Euclidean, normal (standard), Manakov-type, and Einstein metrics.We also consider natural generalizations of the Neumann systems ...
    • Geomasking: Análisis y comparativa de algoritmos para perturbaciones de puntos. 

      Gómez Calero, Raúl (Universitat Politècnica de Catalunya, 2018-01)
      Bachelor thesis
      Open Access
      Se ha propuesto como objetivo, partiendo de una investigación previa teórica, detectar la existencia de una relación directa y/o indirecta entre el grado de enmascaramiento de datos geográficos y los resultados obtenidos ...
    • Geometria amb bombolles de sabó 

      Aubanell, Anton (2004-02-11)
      Audiovisual
      Open Access
      Tots, de petits o de més grans, hem fet bombolles de sabói hem gaudit de la seva bellesa. Tanmateix, darrera d'aquestes innocents i divertides figures s'hi amaga un formidable entramat matemàtic que pot aprofitar-se com a ...