Ponce López, Víctor (Date of defense: 2016-06-02)
The representation (or feature) learning has been an emerging concept in the last years, since it collects a set of techniques that are present in any theoretical or practical methodology referring to ...
Oliver Vendrell, Roc (Date of defense: 2017-09-14)
The main goal of this work is to study vector-valued Bergman spaces and to obtain the weak factorization of these spaces. In order to do that we need to study small Hankel operators with operator-valued ...
Mikec, Luka (Date of defense: 2021-04-30)
In the central part of this thesis we study for different interpretability logics the following aspects: completeness for modal semantics, decidability and algorithmic complexity. In particular, we ...
Navas Portella, Víctor (Date of defense: 2020-07-15)
Complex systems can be understood as an entity composed by a large number of interactive elements whose emergent global behaviour cannot be derived from the local laws characterizing their constituents. ...
Merino Fernández, Raúl (Date of defense: 2021-04-29)
In this thesis, an option price decomposition for local and stochastic volatility jump diffusion models is studied. On the one hand, we generalise and extend the Alòs decomposition to be used in a wide ...
Narváez Clauss, Marta (Date of defense: 2016-06-21)
El teorema de equidistribución de Bilu establece que, dada una sucesión estricta de puntos en el toro algebraico N-dimensional cuya altura de Weil tiende a cero, las órbitas de Galois de los puntos se ...
Roure Perdices, Eduard (Date of defense: 2019-12-19)
A remarkable result in Harmonic Analysis is the so-called Rubio de Francia’s extrapolation theorem. Roughly speaking, it says that if one has an operator T that is bounded on Lp(v), for some p 1 and ...
Sánchez López, Borja (Date of defense: 2022-11-22)
[eng] Many times machine learning is casted as an optimization problem. This is the case when an objective function assesses the success of an agent in a certain task and hence, learning is accomplished ...
Poveda Ruzafa, Alejandro (Date of defense: 2020-11-09)
The present dissertation is a contribution to the field of Mathematical Logic and, more particularly, to the subfield of Set Theory. Within Set theory, we are mainly concerned with the interactions ...
Arroussi, Hicham (Date of defense: 2016-05-06)
The theory of Bergman spaces has been a central subject of study in complex analysis during the past decades. The book [7] by S. Bergman contains the first systematic treat-ment of the Hilbert space of ...