Recent Submissions

  • On iterative methods to solve nonlinear equations 

    Grau Gotés, Ma. Àngela (Maria Àngela) (Universitat Politècnica de Catalunya, 2015-01-28)
    Doctoral thesis
    Open Access
    Many of the problems in experimental sciences and other disciplines can be expressed in the form of nonlinear equations. The solution of these equations is rarely obtained in closed form. With the development of computers, ...
  • On the consistency of hysteresis models 

    Fuad Mohammad Naser, Mohammad (Universitat Politècnica de Catalunya, 2014-01-30)
    Doctoral thesis
    Open Access
    Hysteresis is a nonlinear behavior encountered in a wide variety of processes including biology, optics, electronics, ferroelectricity, magnetism, mechanics, structures, among other areas. One of the main features of ...
  • Engineering patterns of wrinkles and bubbles in supported graphene through modeling and simulation 

    Zhang, Kuang (Universitat Politècnica de Catalunya, 2015-06-10)
    Doctoral thesis
    Open Access
    Graphene deposited on a substrate often exhibits out-of-plane deformations with different features and origins. Networks of localized wrinkles have been observed in graphene synthesized through CVD, as a result of compressive ...
  • Machine learning in multiscale modeling and simulations of molecular systems 

    Hashemian, Behrooz (Universitat Politècnica de Catalunya, 2015-05-08)
    Doctoral thesis
    Open Access
    Collective variables (CVs) are low-dimensional representations of the state of a complex system, which help us rationalize molecular conformations and sample free energy landscapes with molecular dynamics simulations. ...
  • Estimación bayesiana de cópulas extremales en procesos de Poisson 

    Ortego Martínez, María Isabel (Universitat Politècnica de Catalunya, 2015-02-04)
    Doctoral thesis
    Open Access
    The estimation of occurrence probabilities of extremal quantities is essential in the study of hazards associated with natural phenomena. The extremal quantities of interest usually correspond to phenomena characterized ...
  • Matroids : h-vectors, zonotopes, and Lawrence polytopes 

    Dall, Aaron Matthew (Universitat Politècnica de Catalunya, 2015-02-25)
    Doctoral thesis
    Open Access
    The main objects of study in this thesis are matroids. In particular we are interested in three particular classes matroids: regular matroids, arithmetic matroids, and internally perfect matroids. Of these families, regular ...
  • Rational points on Shimura curves and Galois representations 

    Vera Piquero, Carlos de (Universitat Politècnica de Catalunya, 2014-11-07)
    Doctoral thesis
    Open Access
    This thesis explores one of the essential arithmetical and diophantine properties of Shimura curves and their Atkin-Lehner quotients: the existence of rational points on these families of curves over both number fields and ...
  • Decomposition techniques for computational limit analysis 

    Rabiei, Nima (Universitat Politècnica de Catalunya, 2014-10-27)
    Doctoral thesis
    Open Access
    Limit analysis is relevant in many practical engineering areas such as the design of mechanical structure or the analysis of soil mechanics. The theory of limit analysis assumes a rigid, perfectly-plastic material to model ...
  • Arithmetic properties of non-hyperelliptic genus 3 curves 

    Lorenzo García, Elisa (Universitat Politècnica de Catalunya, 2014-09-10)
    Doctoral thesis
    Open Access
    This thesis explores the explicit computation of twists of curves. We develope an algorithm for computing the twists of a given curve assuming that its automorphism group is known. And in the particular case in which the ...
  • The inverse problem on finite networks 

    Araúz Lombardía, Cristina (Universitat Politècnica de Catalunya, 2014-06-19)
    Doctoral thesis
    Open Access
    The aim of this thesis is to contribute to the field of discrete boundary value problems on finite networks. Boundary value problems have been considered both on the continuum and on the discrete fields. Despite working ...

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