A doctorate thesis entitled “Mutual poistions of linear envelopes of four orbits of symmetry directions , that intersect by four different lines” was discussed by the researcher Hanan Nasser Ibrahim at the Faculty of Sciences, under the supervision of Prof. Isam Dubian
The judging panel comprised the following professors: Prof. Muhsen Shiha, Prof. Nidal Hasan, Prof. Basil Al-Arnous, and Prof. Issam Diban
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At the end of the discussion, the researcher Hanan Nasser Ibrahim was awarded a doctorate degree in mathematics with distinction.