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Transference theory between quasi-Banach function spaces with applications to the restriction of Fourier multipliers. 

Rodríguez López, Salvador (Date of defense: 2008-04-07)

In the early 1970 fs, R. Coifman and G. Weiss, generalizing the techniques introduced by A. Calderon, developed a method for transferring abstract convolution type operators, defined on general topological ...

Boundedness of the Hilbert Transform on Weighted Lorentz Spaces 

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 ...

On the Meromorphic Non-Integrability of Some Problems in Celestial Mechanics 

Simon i Estrada, Sergi (Date of defense: 2007-07-09)

In this thesis, we present a proof of the meromorphic non-integrability for some problems arising from Celestial Mechanics, as well as a new necessary condition for partial integrability in a wider ...

Endpoint estimates via extrapolation theory 

Domingo Salazar, Carlos (Date of defense: 2016-04-07)

In this thesis, we study different variants of Rubio de Francia’s extrapolation that allow us to obtain estimates near L1. This theory is subsequently applied to deduce enpoint boundedness for the ...

The Role and Usage of Libration Point Orbits in the Earth - Moon System 

Alessi, Elisa Maria (Date of defense: 2010-10-04)

In this dissertation, we show the effectiveness of the exploitation of the Circular Restricted Three - Body Problem (CR3BP) in the Earth - Moon framework. We study the motion of a massless particle under ...

Context-aware quality of life telemonitoring for a novel healthcare paradigm 

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 ...

Assisted Hybrid Structured 3D Virtual Environments 

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 ...

Spaces of bandlimited functions on compact manifolds 

Pridhnani, Bharti (Date of defense: 2011-09-09)

This monograph is structured in four chapters. In Chapter 1, we present the context of our problem and the main results proved in this work. We describe the asymptotic behaviour of the reproducing ...

Generalized Stacked Sequential Learning 

Puertas i Prats, Eloi (Date of defense: 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 ...

Learning error-correcting representations for multi-class problems 

Bautista Martín, Miguel Ángel (Date of defense: 2016-02-11)

Real life is full of multi-class decision tasks. In the Pattern Recognition field, several method- ologies have been proposed to deal with binary problems obtaining satisfying results in terms of ...

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Ciències Experimentals i Matemàtiques (35)

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51 - Mathematics (28)

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52 - Astronomy. Astrophysics. Space research. Geodesy (3)

004 - Computer science and technology. Computing. Data processing (1)

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Open access (35)

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