Monserrat Delpalillo, Francisco José (Date of defense: 2003-07-23)
A una superficie proyectiva X cualquiera se le pueden asociar una serie de conos convexos (cono de curvas, cono semiamplio y cono característico) que proporcionan información sobre la geometría de la ...
Moreno Ávila, Carlos Jesús (Date of defense: 2021-07-15)
We consider plane divisorial valuations of Hirzebruch surfaces and introduce the concepts of non-positivity and negativity at infinity. We prove that the surfaces given by valuations of the last types ...
Pérez-Callejo, Elvira (Date of defense: 2023-12-21)
We make progress on two open mathematical problems: the problem of algebraic integrability of polynomial foliations on $\mathbb{C}^2$ and the bounded negativity conjecture. For the first one, we identify ...