Mostrando ítems 21-30 de 44
Silvestre Albero, María Pilar (Fecha de defensa: 2012-02-08)
The first part of the thesis is devoted to the analysis on a capacity space, with capacities as substitutes of measures in the study of function spaces. The goal is to extend to the associated function ...
Sánchez Taltavull, Daniel (Fecha de defensa: 2014-12-12)
L'objectiu principal d'aquesta tesi doctoral és l'estudi de l'efecte de les fluctuacions en poblacions acoblades en sistemes biològics, on cèl·lules en estat latent juguen un paper important. Intentant ...
Taixés i Ventosa, Jordi (Fecha de defensa: 2011-09-22)
Newton's method associated to a complex holomorphic function f is defined by the dynamical system Nf(z) = z – f(z) / f'(z). As a root-finding algorithm, a natural question is to understand the dynamics ...
Mondelo González, José María (Fecha de defensa: 2001-07-13)
This works has been organized in three parts. The first (Chapter 1 to 5) is dedicated to the development and study of a procedure for the accurate computation of frequencies, as well ans the related ...
Jorba i Monte, Àngel (Fecha de defensa: 1991-10-11)
In this work we study several topics concerning quasi-periodic time-dependent perturbations of ordinary differential equations. This kind of equations appear as models in many applied problems of Celestial ...
Haro, Àlex (Fecha de defensa: 1998-10-02)
We have divided this thesis in four parts:<br/><br/>a) PART I: Exact symplectic geometry (introduction of the problems). This part contains the basic tools of symplectic geometry and outlines the four ...
Jorba Jorba, Lambert (Fecha de defensa: 2003-05-26)
El sistema de les marques s'enquadra dins del camp de l'anàlisi intervalar modal. <br/>En aquest context la tesi aporta un estudi de les operacions lineals, de la seva semàntica i sobretot de la seva ...
Casasayas i Mas, Josefa (Fecha de defensa: 1984-01-01)
The anisotropic Kepler problem was introduced by Gutzwiller as a classical mechanical system which approximates the following quantum mechanical system: the study of bound states of an electron near a ...
Puertas i Prats, Eloi (Fecha de defensa: 2014-11-04)
Over the past few decades, machine learning (ML) algorithms have become a very useful tool in tasks where designing and programming explicit, rule-based algorithms are infeasible. Some ...
Baldomá, Inmaculada (Fecha de defensa: 2001-01-01)
In general, when beginning to explore any scientific field, one focuses on the generic situations; that is, one centers on the behaviours that appear in “most” of the cases encountered in practice. This ...