Quotient spaces of some operator classes and thei̇r representations

This thesis have been studied quotient spaces which are very important in mathematics. Two main goals have been reached in this direction. The one of them is to collected and systematically give the necessary general definitions, theorems and results regarding quotient spaces of vector spaces, normed spaces and Banach algebras. Our second objective was to obtain quotient spaces of regular operators by L-weakly and M-weakly compact operators defined between Banach lattices. They are also provided a representation for the quotient of regular operators by class of L-weak compact operators.