I was fortunate enough to have studied for the Master of Science in Mathematics at American University of Sharjah. The program not only enriched my knowledge, but also made me realize the beauty of mathematics. I am deeply grateful to my professors for their help during my studies, for their patience, commitment, readiness to support, and face-to-face meetings. Without their continuing advice and support, mathematically as well as personally, I may not have accomplished as much as I did.