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Padrol Sureda, Arnau (Data de defensa: 2013-03-12)
This thesis presents new applications of Gale duality to the study of polytopes with extremal combinatorial properties. It consists in two parts. The first one is devoted to the construction of neighborly polytopes and ...
Grau Gotés, Ma. Àngela (Maria Àngela) (Data de defensa: 2015-01-28)
Many of the problems in experimental sciences and other disciplines can be expressed in the form of nonlinear equations. The solution of these equations is rarely obtained in closed form. With the development of computers, ...
Vera Piquero, Carlos de (Data de defensa: 2014-11-07)
This thesis explores one of the essential arithmetical and diophantine properties of Shimura curves and their Atkin-Lehner quotients: the existence of rational points on these families of curves over both number fields and ...
Martínez Saez, Fernando (Data de defensa: 1997-03-21)
En esta memoria se estudian diferentes problemas dinámicos relacionados con la termomecánica racional. En el primer capitulo se hace un breve repaso a los distintos tipos de problemas a estudiar y de las herramientas a ...