Barja Yáñez, Miguel Ángel (Date of defense: 1998-12-21)
In this tesis we study numerical propieties of surfaces and threefolds, mainly fibred over curves, the so called "slope" of the fibration. We prove partially a conjecture of Fujita on the semiampleness ...
Costa Farràs, Laura (Date of defense: 1998-09-01)
This thesis seeks to contribute to a deeper understanding of the moduli spaces <i>M-sub X, H (r; c1,., Cmin{r;n}</i>) of rank <i>r</I>, <i>H</i>-stable vector bundles E on an <i>n</i>-dimensional variety ...
Montero Torralbo, Miquel (Date of defense: 1998-03-27)
This essay is devoted to the search for monochromatic gravitational wave signals in the data of the cryogenic detector "Explorer". With this aim several filtering procedures have been designed and ...
Llovet Ximenes, Xavier (Date of defense: 1998-07-21)
Theoretical methods to compute accurate x-ray spectra emitted from targets bombarded with kV electrons are required for quantification in Electron Probe Microanalysis (EPMA), especially for the analysis ...
Haro, Àlex (Date of defense: 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 ...