Some aspects of descent theory and applications
Rui Prezado
Abstract
This thesis is an exposition of the author's contribution on effective descent morphisms in various categories of generalized categorical structures. It consists of: Chapter 1, where an elementary description of descent theory and the content of each remaining chapter is provided, supplemented with references; Chapter 2, consisting of various descent theoretical definitions and results employed in the remainder of this work; four chapters, each corresponding to an article written by the author during the period of his PhD studies.