Thesis. M.S. American University of Beirut. Department of Mathematics, 2017. T:6637
Advisor : Dr. Nabil Nassif, Professor, Mathematics ; Committee members : Dr. Issam El Lakkis, Associate Professor, FEA ; Dr. Sophie Moufawad, Assistant Professor, Mathematics, Dr. Rony Touma, Associate Professor, Mathematics, LAU.
Includes bibliographical references (leaves 61- 64)