Differences of some convergence of sequences of sets

The aim of the this thesis is to study some type of convergence of sequences of sets. Create new sequences of sets by taking difference of these sequences of sets. This study consist from three chapters. İn first chapter, work done until now was briefly told. İn second chapter, basic definitions and theorems used in the study are given. Some concepts have been studied in the literature for sequences of sets which are subsets of normed space and metric space. In third chapter, convergence types sense of Mosco, Kuratowski, Wijsman, Haussdorff and Fisher were defined. Then related examples and theorems showing the relations between types of these convergence and were given.