Now showing items 1-20 of 106
Cuadras, C. M. (Carlos María) (Date of defense: 1977-11-02)
Cuando, realizado un análisis de la varianza, el efecto de un factor resulta significativo, para poder tener información sobre las causas de esta significación, se hace necesario conocer la forma en que se diferencian los ...
Corcuera Valverde, José Manuel (Date of defense: 1994-06-14)
Razones de coherencia lógica, en el contexto de modelos estadísticos paramétricos, llevan a considerar como estimadores únicamente aquellos que poseen la propiedad de invarianza funcional. Los estimadores resultan así ...
Farkas, Gergely (Date of defense: 2014-06-12)
This thesis deals with three possible applications of stochastic calculus: modelling prices by supply and demand in a financial market where there is an informed trader, turbulence and financial models using ambit processes ...
Penya-Alba, Toni (Date of defense: 2014-12-16)
Supply chain formation involves determining the participants and the exchange of goods within a production network. Today’s companies operate autonomously, making local decisions, and coordinating ...
Alsina i Aubach, Montserrat (Date of defense: 2000-02-07)
L'estudi dels grups fuchsians i les funcions automorfes associades s'inicià en el segle XIX en els treballs de H. Poincaré, R. Fricke i F. Klein, principalment. A partir dels anys seixanta, al llarg de nombrosos treballs, ...
Almajano, Pablo (Date of defense: 2014-10-17)
The blending of digital technologies, such as artificial intelligence, interactive systems, 3D interfaces and the Internet is enabling new services for users. In particular, Hybrid Structured 3D Virtual Environments (VE) ...
Romero, Adriana (Date of defense: 2015-10-02)
Deep learning has recently been enjoying an increasing popularity due to its success in solving challenging tasks. In particular, deep learning has proven to be effective in a large variety of computer vision tasks, such ...
Agora, Elona (Date of defense: 2012-07-13)
The main goal of this thesis is to characterize the weak-type (resp. strong-type) boundedness of the Hilbert transform H on weighted Lorentz spaces Λpu(w). The characterization is given in terms of some geometric ...
Silvestre Albero, María Pilar (Date of defense: 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 lattices some aspects ...
Parafita, Álvaro (Date of defense: 2023-05-12)
[eng] The notion of cause and effect is fundamental to our understanding of the real world; ice cream sales correlate with jellyfish stings (both increase during summer), but a ban on ice cream could hardly stop jellyfishes. ...
Vives i Santa Eulàlia, Josep, 1963- (Date of defense: 1994-01-24)
El treball de recerca que recull aquesta memòria s'emmarca dins del càlcul estocàstic de variacions i el càlcul estocàstic anticipatiu. La memòria es divideix en quatre capítols. Al primer (de preliminars) s'introdueixen ...
Canadell Cano, Marta (Date of defense: 2014-07-04)
The subject of the theory of Dynamical Systems is the evolution of systems with respect to time. Hence, it has many applications to other areas of science, such as Physics, Biology, Economics, etc. and it also has interactions ...
Taixés i Ventosa, Jordi (Date of defense: 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 of Nf about its fixed ...
Miralles Barrachina, Felip (Date of defense: 2016-04-22)
Our healthcare systems are facing sustainability challenges caused by a demographic shift with ageing, chronicity and disability growing in our society. A novel healthcare paradigm should be founded on 4P medicine: Preventive, ...
Casanovas Ruiz-Fornells, Enrique (Date of defense: 1987-01-01)
Se estudian ciertas versiones del teorema de compacidad y del teorema de completud en su aplicación a extensiones de la lógica de primer orden. Concretamente, se consideran M-lógicas y K-lógicas, donde M es un modelo y K ...
Duran Rúbies, Josep Maria (Date of defense: 2004-02-05)
Aquesta memòria és un recull de diverses desigualtats d'interès principalment en regressió i anàlisi multivariant, les quals en alguns casos s'il·lustren i interpreten gràfícament.<br/><br/>En els primers capítols es ...
Rovira Escofet, Carles (Date of defense: 1995-12-12)
En aquesta tesi es realitza l'estudi de les propietats de dues equacions diferencials estocàstiques: una en derivades parcials per processos hiparamètrics que convertim en una equació integral estocàstica en el pla, i una ...
Márquez Carreras, David (Date of defense: 1998-12-15)
DE LA TESI DOCTORAL:<br/><br/>Aquesta memòria estudia bàsicament el comportament asimptòtic de la densitat de diferents famílies de vectors aleatoris. Al començament es dóna una introducció on es comenten diversos treballs ...
Pla i Carrera, Josep (Date of defense: 1975-01-01)
Aquesta tesi presenta una contribució a l'estudi de les estructures algebraïques dels sistemes lògics deductius
Baldomá, Inmaculada (Date of defense: 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 methodology ...