. Zuzan Naaman Hassan, Nihad Titan Sarhan (2020), The energy of conjugacy classes graphs of some order of alternating group; Journal of Raparin University.

. Faraj M. Omar, Mohammed I, Sadeeq, Nihad T. Sarhan, (2023), Solving Model od Reaction-Diffusion System in Ecological by Symmetry Lie Group Methods, Wasit Journal for pure Science.

Some of the research interests about graph theory such as, Spectral Graph theory, combinatorial graph theory and polynomials

I have been Teaching some subject for undergraduate students such as( Calculus, Linear Algebra, Ordinary Differential Equation, Mathematical Analysis, Functional Analysis, Special Functions and Graph Theory.

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