Ileana Toma has a 25-year experience in mathematical research, first at the Simion Stoilow Institute of Mathematics of the Romanian Academy (http://www.imar.ro/) and then at the Remus Răduleţ Institute of Electrotechnical Research (ICPE).
A specialist in differential equations, she presented her original method LEM – the linear equivalence method – in her PhD thesis. LEM is a mathematical method of determining – analytically and numerically – the solutions of nonlinear dynamical systems. On LEM and its applications in nonlinear mechanics, physics, chemistry, a.s.o., she authored more than a hundred scientific papers and several books, one of them self-published at Amazon, printed in the frame of the CreateSpace Independent Publishing Platform (Ileana Toma, LEM: A new method for nonlinear mechanics, 2015).
Ileana Toma then became a professor at the Technical University of Civil Engineering of Bucharest (https://utcb.ro/en/), where she taught courses of Mathematical Analysis, Differential Equations, Advanced Calculus, Numerical Analysis, preparing the students for their future profession.
She initiated at Amazon CreateSpace a series entitled Mathematics for future engineers, in co-operation with Valerica Moşneguţu, a scientific researcher at the Institute of Solid Mechanics of the Romanian Academy (https://imsar.academia.edu/) and Ștefania Constantinescu, a professor at the Technical University of Civil Engineering of Bucharest. Both of them gave tutorials on the above mentioned courses given by Ileana Toma; step by step, a team was created.
Based on this effective teamwork, four volumes of the series already appeared.