Professor at the Faculty of Science, Prof. Muhannad Ahmed Mahmoud, published a joint scientific research entitled (On optical solution for the nonlinear fractional twin core couplers with kerr law nonlinearity) in cooperation with foreign researchers from several international universities. Fields in applied mathematics, as it dealt with a method for solving problems and mathematical equations, as well as finding a solution for non-linear dual-core couplers. He added that the research was published in the Optical and Quantum Electronics magazine, which is issued by the international publishing house (Springer) indexed within the Clarivite and Scopas containers with coefficients. High impact (2.7), and the publication of this scientific research comes from the principle of scientific cooperation between Iraqi and international universities.