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 ...
Bosch i Bastardas, Roger (Date of defense: 2002-04-12)
Atès que el resum conté caràcters matemàtics especials, s'ha optat per incloure'l com a document annex, amb el títol "Resum.pdf".
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 ...
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 ...
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 ...
Amorós Carafí, Laia (Date of defense: 2016-12-16)
The Langlands program is a vast and unifying network of conjectures that connect the world of automorphic representations of reductive algebraic groups and the world of Galois representations. These ...
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 ...
Bou Moliner, Félix (Date of defense: 2004-10-01)
Esta tesis doctoral introduce los aquí llamados lenguajes estricto-débiles, y los analiza desde diversos puntos de vista. Los lenguajes estricto débiles son aquellos lenguajes formales que constan de ...