eprintid: 10204909 rev_number: 12 eprint_status: archive userid: 699 dir: disk0/10/20/49/09 datestamp: 2025-03-13 10:22:00 lastmod: 2025-03-13 10:22:00 status_changed: 2025-03-13 10:22:00 type: thesis metadata_visibility: show sword_depositor: 699 creators_name: Voegtli, Pascale title: On an extension of two classical theorems to the realm of foliations ispublished: unpub divisions: UCL divisions: B04 divisions: C06 divisions: F59 note: Copyright © The Author 2025. Original content in this thesis is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) Licence (https://creativecommons.org/licenses/by-nc/4.0/). Any third-party copyright material present remains the property of its respective owner(s) and is licensed under its existing terms. Access may initially be restricted at the author’s request. abstract: This thesis focuses on two papers that I have contributed to in the last four years. The broader scope of both projects is the birational geometry of the foliated varieties. The first part of the thesis covers joint work with D. Jiao on an extension of Kawamata's theorem on the type of morphism connecting different Minimal Models to threefolds equipped with a corank one foliation with mild singularities. The second part deals with joint work with D. Jiao and Chen on the existence of $\mathbb{Q}$-complements, a particular kind of global sections of the pluricanonical system $-mK_{\mathcal{F}}$ for some $m \in \mathbb{Z}$, for algebraically integrable log Fano foliations $\mathcal{F}$. The latter work is motivated by the groundbreaking results of Birkar on complements for Fano-type varieties which set the stage for his later success in resolving a long-standing conjecture concerning the boundedness of $\epsilon$-log canonical Fano varieties.\\ The thesis is subdivided into two almost self-contained chapters - each dealing with one of the above-outlined theorems. date: 2025-02-28 date_type: published oa_status: green full_text_type: other thesis_class: doctoral_open thesis_award: Ph.D language: eng primo: open primo_central: open_green verified: verified_manual elements_id: 2362478 lyricists_name: Voegtli, Pascale lyricists_id: PVOEG64 actors_name: Voegtli, Pascale actors_id: PVOEG64 actors_role: owner full_text_status: public pagerange: 1-75 pages: 76 institution: UCL(University College London) department: Mathematics thesis_type: Doctoral citation: Voegtli, Pascale; (2025) On an extension of two classical theorems to the realm of foliations. Doctoral thesis (Ph.D), UCL(University College London). Green open access document_url: https://discovery.ucl.ac.uk/id/eprint/10204909/1/On_an_extension_of_two_classical_theorems_to_the_realm_of_foliations__1_%20%287%29.pdf