Dr. Ahmed Ayache areas of expertise are commutative algebra, rings theory, groups theory, field Theory. He was a professor at the University of Sana’a, Yemen, 2013-2015 and before that the dean of the faculty of science in the University of Sana’a during 2012-2013. He has also worked in the University of Aix-Marseille III. He supervised/examined a number of master and doctorate theses, assessed several promotion cases to the rank of associate of full professor. He published more than 45 articles in different areas of commutative algebra, refereed numerous manuscripts in commutative algebra and published 3 books in mathematics. He was honored with Aden prize in 2000 in fundamental sciences. He participated and organized numerous conferences and workshops and has collaborated with other mathematical laboratories in France, U.S.A, Tunisia, Qatar, KSA. He worked as a consultant for the Higher Education Quality Improvement Project in Yemen, 05/01/2013- 18/07/2013.